Item 2(c)(1) Originator Name Originator Name for co-originated loans was truncated to only include the originator contributing to the BMO 2022-C1 transaction to meet EDGAR constraints. Item 2(c)(4) Original Term Loan Number For the anticipated repayment date mortgage loan (Asset Number 4): the original term loan number represents the term of the mortgage loan through the anticipated repayment date, rather than the actual Maturity Date. Item 2(c)(15) Loan Structure Code For the mortgage loan identified as 360 Rosemary (Asset Number 2), Coleman Highline Phase IV (Asset Number 4), 601 Lexington Avenue (Asset Number 6), Hudson Commons (Asset Number 7), 111 River Street (Asset Number 10) and Meadowood Mall (Asset Number 22), the mortgage loan is evidenced by one or more senior pari passu note(s) that are part of a loan combination that consists of senior pari-passu notes and one or more subordinate notes. The other senior pari-passu notes and the subordinate notes are not included in the trust. For the mortgage loan identified as 360 Rosemary (Asset Number 2), one of the subordinate notes is held by the trust and solely backs the 360 Rosemary loan-specific certificates (and is not part of the pool of mortgage loans backing the pooled certificates). For the mortgage loan identified as 111 River Street (Asset Number 10), the one subordinate note is held by the trust and solely backs the 111 River Street loan-specific certificates (and is not part of the pool of mortgage loans backing the pooled certificates). Item 2(d)(1) Property Name For mortgage loans that are part of a loan combination, the related mortgaged property secures the entire loan combination, including one or more companion loans not included in the trust. Item 2(d)(8) Net Rentable Square Feet Number For property types where the standard unit of measure is not square feet, this field is left blank. For mortgage loans that are part of a loan combination, net rentable square feet is presented for the entire mortgaged property that secures the whole loan combination, including one or more companion loans not included in the trust. Item 2(d)(9) Net Rentable Square Feet Securitization Number For property types where the standard unit of measure is not square feet, this field is left blank. For mortgage loans that are part of a loan combination, the net rentable square feet securitization number is presented for the entire mortgaged property that secures the whole loan combination, including one or more companion loans not included in the trust. Item 2(d)(10) Units Beds Rooms Number For mortgage loans that are part of a loan combination, the units beds rooms number relates to the entire mortgaged property that secures the whole loan combination, including one or more companion loans not included in the trust. Item 2(d)(11) Units Beds Rooms Securitization Number For mortgage loans that are part of a loan combination, the units beds rooms securitization number relates to the entire mortgaged property that secures the whole loan combination, including one or more companion loans not included in the trust. Item 2(d)(14) Valuation Securitization Amount For mortgage loans that are part of a loan combination, the valuation securitization amount relates to the entire mortgaged property that secures the whole loan combination, including one or more companion loans not included in the trust. Item 2(d)(20) Physical Occupancy Securitization Percentage The percentage of rentable space is determined based on the applicable unit of measurement provided in 2(d)(9) or 2(d)(11). Item 2(d)(28)(i) Financials Securitization Date For the mortgage loans identified as 360 Rosemary (Asset Number 2), Coleman Highline Phase IV (Asset Number 4), Hudson Commons (Asset Number 7), Fleet Farm - Stevens Point (Asset Number 21), Mills Fleet Farm Carver (Assent Number 27), SAPA Transmission (Asset Number 40), Corrington Industrial (Asset Number 43), 1214 West Carmen (Asset Number 47), Middletown Retail Plaza (Asset Number 54), 1642-1646 West Belmont Avenue (Asset Number 56), Grand Logan Lodge Apartments (Asset Number 57) and Diamond Blade (Asset Number 76), the Financials Securitization Date has been left blank as it was not available at the time of securitization. Item 2(d)(28)(iv) Revenue Securitization Amount For mortgage loans that are part of a loan combination, the revenue securitization amount is presented for the entire mortgaged property that secures the whole loan combination, including one or more companion loans not included in the trust. Item 2(d)(28)(vi) Operating Expenses Securitization Amount For mortgage loans that are part of a loan combination, the total underwritten operating expenses securitization amount are presented for the entire mortgaged property that secures the whole loan combination, including one or more companion loans not included in the trust. Item 2(d)(28)(viii) Net Operating Income Securitization Amount For mortgage loans that are part of a loan combination, the net operating income securitization amount is presented for the entire mortgaged property that secures the whole loan combination, including one or more companion loans not included in the trust. Item 2(d)(28)(x) Net Cash Flow Securitization Amount For mortgage loans that are part of a loan combination, the net cash flow securitization amount is presented for the entire mortgaged property that secures the whole loan combination, including one or more companion loans not included in the trust. Item 2(d)(28)(xv) Debt Service Coverage Net Operating Income Securitization Percentage For mortgage loans that are part of a loan combination, the debt service coverage net operating income securitization percentage is calculated based on the subject mortgage loan and any related pari passu companion loans not included in the trust, but without regard to any subordinate companion loans. For the mortgage loan identified as AMF Portfolio (Asset Number 5), the Debt Service Coverage Net Operating Income Securitization Percentage is calculated using the non-traditional amortization schedule and the assumed principal and interest payments beginning November 2028. For the mortgage loans identified as Centennial Plaza (Ass Number 36) and Jefferson County Plaza (Asset Number 37), the mortgage loans are cross- collateralized and cross-defaulted, all metrics are shown on a combined basis of the two mortgage loans. Item 2(d)(28)(xvii) Debt Service Coverage Net Cash Flow Securitization Percentage For mortgage loans that are part of a loan combination, the debt service coverage net cash flow securitization percentage is calculated based on the subject mortgage loan and any related pari passu companion loans not included in the trust, but without regard to any subordinate companion loans. For the mortgage loan identified as AMF Portfolio (Asset Number 5), the Debt Service Coverage Net Cash Flow Securitization Percentage is calculated using the non-traditional amortization schedule and the assumed principal and interest payments beginning November 2028. For the mortgage loans identified as Centennial Plaza (Ass Number 36) and Jefferson County Plaza (Asset Number 37), the mortgage loans are cross- collateralized and cross-defaulted, all metrics are shown on a combined basis of the two mortgage loans. Item 2(e)(6) Servicer Trustee Fee Rate Percentage It should be noted that the rate presented consists of (i) the master servicing fee rate, which includes any primary servicing fee rate payable to an outside servicer (for a loan combination) or other primary servicer, and any subservicing fee rate, (ii) the certificate administrator / trustee fee rate payable to the certificate administrator and the trustee, (iii) the operating advisor fee rate, (iv) the asset representations reviewer fee and (v) the CREFC(R) intellectual property royalty license fee rate. Item 2(f)(1) Primary Servicer Name The primary servicer names have been truncated due to EDGAR constraints. The full name for Wells Fargo is Wells Fargo Bank, National Association. The full name for Midland is Midland Loan Services, a Division of PNC Bank, National Association. The full name for KeyBank is KeyBank National Association. The full name for BSC is BSC Group. The full name for PSRS is Pacific Southwest Realty Services.