However, a new management company took over earlier last year and sent a notice to me saying that I am not authorized to rent out my unit and I have to confirm to them that I am living in the unit.  

There is a one time authorization and then the service takes the money out of the tenant's account each month and deposits it in ours.

(the following is a personal, non-authorative, non-legal suggestion )Serve notice of entry, comment on asbestos inspector coming with you. 

@Marvin RiceNot starting something new, only bringing it from the author John Green. 

Dekalb housing authority might be a good fit here because I think they need more houses for their program participants.

She and her husband are blowing me off about signing the authorization.

(And if so which one)4) Or are you doing it without the authority of any legal rule?

There are a couple of ways to attack this...As an authorized HUD Brokerage in Florida we work with investors from as far away as Norway helping them acquire.In some cases, they offer, they win, and the day the contract is signed, we list it again.

I am guessing that a tenant in this situation would not pay April rent, and the incoming owner would not even be the plaintiff in the small claims case, but they would be left holding the bag of an angry tenant.We did include a clause in the offer to purchase requiring the seller to have us authorize any new tenants (we get to do the tenant screening) prior to signing any new leases, but we didn’t envision this situation.Does anyone have any suggestions or experience with this type of issue?

Here's the Housing Authority rule on the matter:Renting From a Relative: Generally, a PHA must not approve an owner under Section 8 if he or she is a relative of a tenant. 24 C.F.R. § 982.306(d).