EXHIBIT 9.1

Letter re Change in Certifying Accountant

Ladies and Gentlemen:

We have read the statements made by Gratus Capital Properties Fund III, LLC (the “Company”) under the heading “Change in Certifying Accountant” in the Company’s Current Report on Form 1-U dated August 10, 2026, to be filed with the U.S. Securities and Exchange Commission.

We agree with such statements insofar as they relate to our firm.

Very truly yours,

PCAOB No:6993

Lagos, Nigeria

August 10, 2026