You have this agreement in writing, correct?
Access by the owner should be addressed in the contract.
State law may offer your protection under landlord- tenant regulations.
No matter who is involved, or well they are known to each other, a clear written agreement is the only way to insure that EVERYONE is protected.
I would take it to your atty asap. As for the key, that is a contract issue and who is on the deed as owner.
KW Commercial Atlanta
Your friend the agent "got the mortgage"? What does that mean - she applied and is carrying the note for you?
Who signed the purchase agreement? Please tell me there was a lawyer involved because this is where this one is headed.....