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  <xs:element id="mrmd_LoanRepurchaseAgreementNoteNumberOneMember" abstract="true" name="LoanRepurchaseAgreementNoteNumberOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_LoanRepurchaseAgreementNoteNumberTwoMember" abstract="true" name="LoanRepurchaseAgreementNoteNumberTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_PromissoryNoteIssuedToPurchaseLandMember" abstract="true" name="PromissoryNoteIssuedToPurchaseLandMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_PromissoryNotesIssuedToPurchaseMotorVehiclesMember" abstract="true" name="PromissoryNotesIssuedToPurchaseMotorVehiclesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_PromissoryNotesIssuedToPurchaseOtherMachineryAndEquipmentMember" abstract="true" name="PromissoryNotesIssuedToPurchaseOtherMachineryAndEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_MortgagesAndNotesPayableMember" abstract="true" name="MortgagesAndNotesPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ErmontAcquisitionMember" abstract="true" name="ErmontAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_GreenhouseNaturalsAcquisitionMember" abstract="true" name="GreenhouseNaturalsAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_LoanAndSecurityAgreementMember" abstract="true" name="LoanAndSecurityAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_BankOfNewEnglandNewBedfordMAInitialMortgageMember" abstract="true" name="BankOfNewEnglandNewBedfordMAInitialMortgageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_PromissoryNotesMember" abstract="false" name="PromissoryNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_LongTermDebtInterestRateInitialTerm" abstract="false" name="LongTermDebtInterestRateInitialTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_DebtInstrumentInterestOnlyPaymentsDuePeriod" abstract="false" name="DebtInstrumentInterestOnlyPaymentsDuePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_DebtInstrumentLengthOfAmortizationSchedule" abstract="false" name="DebtInstrumentLengthOfAmortizationSchedule" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_ProceedsFromIssuanceOfOtherLongTermDebtHeldInEscrow" abstract="false" name="ProceedsFromIssuanceOfOtherLongTermDebtHeldInEscrow" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_RepaymentsOfNotesPayableInterest" abstract="false" name="RepaymentsOfNotesPayableInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_DebtInstrumentCollateralMonthlyFee" abstract="false" name="DebtInstrumentCollateralMonthlyFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_BNEDelawareMortgageMember" abstract="true" name="BNEDelawareMortgageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_DebtInstrumentInterestRateStatedRatePeriodicAdjustmentTerm" abstract="false" name="DebtInstrumentInterestRateStatedRatePeriodicAdjustmentTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_DebtInstrumentInterestRateFloor" abstract="false" name="DebtInstrumentInterestRateFloor" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mrmd_DuQuoinStateBankAnnaILAndHarrisburgILPropertiesMember" abstract="false" name="DuQuoinStateBankAnnaILAndHarrisburgILPropertiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_DuQuoinMetropolisMortgageMember" abstract="true" name="DuQuoinMetropolisMortgageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_DuQuoinMountVernonMortgageMember" abstract="true" name="DuQuoinMountVernonMortgageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_SouthPorteBankMortgageMember" abstract="true" name="SouthPorteBankMortgageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_MariHoldingsMetropolisLLCMember" abstract="true" name="MariHoldingsMetropolisLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_MetropolisILFacilityMember" abstract="true" name="MetropolisILFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_MariMedIncMember" abstract="true" name="MariMedIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_MariHoldingsMtVernonLLCMember" abstract="false" name="MariHoldingsMtVernonLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_FloorRateMember" abstract="false" name="FloorRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_DebtInstrumentDevelopmentAgreementNumberOfDispensaries" abstract="false" name="DebtInstrumentDevelopmentAgreementNumberOfDispensaries" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="mrmd_AssetAcquisitionConsiderationTransferredEquityInterestInAffiliatesPercentage" abstract="false" name="AssetAcquisitionConsiderationTransferredEquityInterestInAffiliatesPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mrmd_LoanRepurchaseAgreementMember" abstract="true" name="LoanRepurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_SeriesBObligationMember" abstract="true" name="SeriesBObligationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_PromissoryNoteMember" abstract="true" name="PromissoryNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_NewSeriesBPreferredStockMember" abstract="true" name="NewSeriesBPreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_DebtInstrumentNumberOfNotesIssued" abstract="false" name="DebtInstrumentNumberOfNotesIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="mrmd_DebtInstrumentInterestRateStatedPercentageAfterPotentialRedcution" abstract="false" name="DebtInstrumentInterestRateStatedPercentageAfterPotentialRedcution" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mrmd_DebtInstrumentPotentialInterestRateReductionPaymentPeriod" abstract="false" name="DebtInstrumentPotentialInterestRateReductionPaymentPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_ErmontPromissoryNoteMember" abstract="true" name="ErmontPromissoryNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_NotesPayableInterestOnlyPaymentsTerm" abstract="false" name="NotesPayableInterestOnlyPaymentsTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_NotesPayableAmountDueThresholdEquityCapitalRaisedAfterAcquisition" abstract="false" name="NotesPayableAmountDueThresholdEquityCapitalRaisedAfterAcquisition" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_BusinessCombinationConsiderationTransferredFairValueOfPromissoryNote" abstract="false" name="BusinessCombinationConsiderationTransferredFairValueOfPromissoryNote" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_GreenhouseNaturalsLLCBeverlyAssetPurchaseMember" abstract="false" name="GreenhouseNaturalsLLCBeverlyAssetPurchaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_BeverlyNoteMember" abstract="true" name="BeverlyNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_AssetAcquisitionConsiderationTransferredLiabilitiesIncurred" abstract="false" name="AssetAcquisitionConsiderationTransferredLiabilitiesIncurred" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_MedLeafAcquisitionMember" abstract="true" name="MedLeafAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_DebtInstrumentNumberOfPrincipalPayments" abstract="false" name="DebtInstrumentNumberOfPrincipalPayments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="mrmd_AllgreensDispensaryLLCMember" abstract="true" name="AllgreensDispensaryLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ExtinguishmentOfDebtPaymentOccurrenceAxis" abstract="true" name="ExtinguishmentOfDebtPaymentOccurrenceAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="mrmd_ExtinguishmentOfDebtPaymentOccurrenceDomain" abstract="true" name="ExtinguishmentOfDebtPaymentOccurrenceDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ExtinguishmentOfDebtPaymentOccurrenceOneMember" abstract="true" name="ExtinguishmentOfDebtPaymentOccurrenceOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ExtinguishmentOfDebtPaymentOccurrenceTwoMember" abstract="true" name="ExtinguishmentOfDebtPaymentOccurrenceTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ExtinguishmentOfDebtPaymentOccurrenceThreeMember" abstract="true" name="ExtinguishmentOfDebtPaymentOccurrenceThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ExtinguishmentOfDebtPaymentOccurrenceFourMember" abstract="true" name="ExtinguishmentOfDebtPaymentOccurrenceFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ExtinguishmentOfDebtPaymentOccurrence" abstract="false" name="ExtinguishmentOfDebtPaymentOccurrence" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_ThreeVehicleNotesMember" abstract="true" name="ThreeVehicleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_MiddleboroughNoteMember" abstract="true" name="MiddleboroughNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_NumberOfPromissoryNotesOutstandingCommercialMotorVehicles" abstract="false" name="NumberOfPromissoryNotesOutstandingCommercialMotorVehicles" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="mrmd_DebtWeightedAverageRemainingTerm" abstract="false" name="DebtWeightedAverageRemainingTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_LongTermDebtMaturityAfterYearFour" abstract="false" name="LongTermDebtMaturityAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_TwoUnaffiliatedInstitutionalShareholdersMember" abstract="false" name="TwoUnaffiliatedInstitutionalShareholdersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ExchangeAgreementMember" abstract="false" name="ExchangeAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ConvertiblePreferredStockNumberOfUnaffiliatedInstitutionalShareholders" abstract="false" name="ConvertiblePreferredStockNumberOfUnaffiliatedInstitutionalShareholders" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="mrmd_ConvertiblePreferredStockTermOfOptionToConvert" abstract="false" name="ConvertiblePreferredStockTermOfOptionToConvert" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_ConvertiblePreferredStockThresholdConsecutiveTradingDaysAfterSixYearAnniversary" abstract="false" name="ConvertiblePreferredStockThresholdConsecutiveTradingDaysAfterSixYearAnniversary" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_PreferredStockConvertibleDifferenceBetweenVolumeWeightedAveragePriceAndConversionPrice" abstract="false" name="PreferredStockConvertibleDifferenceBetweenVolumeWeightedAveragePriceAndConversionPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="mrmd_ConvertiblePreferredStockVolumeWeightedAveragePriceCommonStockThresholdPriceBeforeSixYearAnniversary" abstract="false" name="ConvertiblePreferredStockVolumeWeightedAveragePriceCommonStockThresholdPriceBeforeSixYearAnniversary" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="mrmd_ConvertiblePreferredStockThresholdConsecutiveTradingDays" abstract="false" name="ConvertiblePreferredStockThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_ConvertiblePreferredStockThresholdAverageDailyVolumeOfSharesTraded" abstract="false" name="ConvertiblePreferredStockThresholdAverageDailyVolumeOfSharesTraded" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="mrmd_ConvertiblePreferredStockThresholdConsecutiveTradingDaysAfterFiveYearAnniversary" abstract="false" name="ConvertiblePreferredStockThresholdConsecutiveTradingDaysAfterFiveYearAnniversary" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mrmd_ConvertiblePreferredStockVolumeWeightedAveragePriceLessThanOrEqualToCommonStockThresholdPriceAfterSixYearAnniversary" abstract="false" name="ConvertiblePreferredStockVolumeWeightedAveragePriceLessThanOrEqualToCommonStockThresholdPriceAfterSixYearAnniversary" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="mrmd_ConvertiblePreferredStockVolumeWeightedAveragePriceGreaterThanCommonStockThresholdPriceAfterSixYearAnniversary" abstract="false" name="ConvertiblePreferredStockVolumeWeightedAveragePriceGreaterThanCommonStockThresholdPriceAfterSixYearAnniversary" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="mrmd_MixedUnitWithConvertiblePreferredStockAndWarrantMember" abstract="true" name="MixedUnitWithConvertiblePreferredStockAndWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_HadronHealthcareMasterFundMember" abstract="false" name="HadronHealthcareMasterFundMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_SeriesCConvertiblePreferredStockMember" abstract="false" name="SeriesCConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_AmendedAndRestatedTwoThousandEighteenStockAwardAndIncentivePlanMember" abstract="false" name="AmendedAndRestatedTwoThousandEighteenStockAwardAndIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_EarningsBeforeInterestTaxDepreciationAndAmortization" abstract="false" name="EarningsBeforeInterestTaxDepreciationAndAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_ProductSalesRetailMember" abstract="false" name="ProductSalesRetailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_ProductSalesWholesaleMember" abstract="false" name="ProductSalesWholesaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_OtherRevenueMember" abstract="false" name="OtherRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_LesseeOperatingLeaseNumberOfOperatingLeases" abstract="false" name="LesseeOperatingLeaseNumberOfOperatingLeases" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="mrmd_LesseeOperatingLeaseNumberOfFinanceLeases" abstract="false" name="LesseeOperatingLeaseNumberOfFinanceLeases" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="mrmd_LessorOperatingLeaseNumberOfSubLeases" abstract="false" name="LessorOperatingLeaseNumberOfSubLeases" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="mrmd_FinanceLeaseCost" abstract="false" name="FinanceLeaseCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_LesseeOperatingLeasesLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeasesLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_LesseeFinanceLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeFinanceLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_BettysEddiesProductsMember" abstract="false" name="BettysEddiesProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_FutureDevelopedProductsMember" abstract="true" name="FutureDevelopedProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_RoyaltyAgreementMember" abstract="true" name="RoyaltyAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_FixedAssetsPurchasedMember" abstract="true" name="FixedAssetsPurchasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_FixedAssetsPurchasedRelatedToAcquisitionMember" abstract="true" name="FixedAssetsPurchasedRelatedToAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_FixedAssetsPurchasedAmountsAssumedInAcquisitionMember" abstract="true" name="FixedAssetsPurchasedAmountsAssumedInAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_FixedAssetsPurchasedAmountAdvancedToCompanyMember" abstract="true" name="FixedAssetsPurchasedAmountAdvancedToCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_MajorityOwnedSubsidiaryMember" abstract="true" name="MajorityOwnedSubsidiaryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_RoyaltyExpenseAsAPercentageOfSales" abstract="false" name="RoyaltyExpenseAsAPercentageOfSales" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mrmd_OGGUSABankruptcyProceedingsMember" abstract="false" name="OGGUSABankruptcyProceedingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_NonOfficerDirectorShareholderMember" abstract="true" name="NonOfficerDirectorShareholderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_MariMedHempIncMember" abstract="false" name="MariMedHempIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mrmd_OwnershipInterestPercentage" abstract="false" name="OwnershipInterestPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mrmd_PaymentsToShareholders" abstract="false" name="PaymentsToShareholders" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mrmd_PaymentsToShareholdersPerYear" abstract="false" name="PaymentsToShareholdersPerYear" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
