These contracts are both dated 2019 and appear to be lease agreements for solar equipment that I, nor the mortgage lender, were ever a party to.

This kind of thing happens and now would be a good time to negotiate and add to your agreement how it will be handled in future.

Quote from @Jonathan Grzeszczyk: I agree that the motivation and problem is the core, but the first question is always where are you going when we come to a win-win agreement for you to sell me your house.

In my opinion, the US and the UAE have agreements to avoid double taxation, so there should not be any additional costs in Dubai.

Some Lenders can even take just the Lease Agreement.

back of the napkin or formal agreements?

Define roles, financial contributions, profit-sharing, and responsibilities in a detailed agreement.

Therefore, due to the local jurisdiction, sometimes we choose to mutually terminate the lease and write a new one instead of modifying the original by agreement.

Review their management agreement.

Look to other members suggestions and, definitely interview your Realtor choices before going headlong into an agreement.