@Allison Hayek just make sure that you get title insurance subject to that underlying mortgage -  order it asap and get it in writing  - also make sure you have authority to talk to the lender on their behalf. 

Require tenants to provide proof of their filings for assistance with the local Housing Authority. 

Hence this question to the forum instead of going directly to the authorities, by the way.What would constitute a satisfactory reply from her?

Just be careful and make sure the law authority is with you.

"I doubt the political will exists to get rid of it"I don't know. last time Ds owned the world was 2009, however, the make-up of Congress has changed a lot since then. 

You can't raise the rent because they are under a written contract that states what the rent will be.However, they can't change the number of authorized occupants.Your solution is to give the tenant written notice she is in violation of the contract by adding an unauthorized adult.

If not, give your tenant notice that it is not authorized on the property and must be removed within 72 hours or their lease will be terminated.Your property manager should do better.

That's the case unless the new Democratic Congress changes the law. 

I couldn’t quite read your screenshot on mobile, but for Marietta, once all inspections are passed, the builder (or their authorized agent) has to go down, pay any fees/balance and get the CO.

With Democrats having control of congress, they will be moving fast on tax reform.