If your purpose is for legal protection I would consult an attorney.  

You will find many recent posts from investors who have lost all of their syndication investment, and then talk about bringing legal action against the syndicator.

Since the lease was with both then you need to make the check out to both, to do otherwise would be making a legal determination which is what the domestic court is for, and where they can take their issue to resolve. 

The property manager should provide a copy of the existing lease agreement, rent roll, other related documents, and notify the tenants of a change in management.You should also be aware of any specifics outlined in the lease for your tenant's situation (e.g., pets).How should the contract be handled moving forward?

It's primarily a legal protection vehicle and should be advised upon by a lawyer in most circumstances.

Just seeing who requires new owners/landlords to provide their financial documentation upon signing a management agreement?

Spoke to our lawyer, posted the necessary documents to confirm it was abandoned property and went on to have it cleaned and a Section 8 tenant moved in.My question is, I hear everyone talk about cash for keys, cash for keys, cash for keys.

The only documents we have would be a signed lease, and tenant ledger.

Legally speaking, if you have agreed to an installment sale, I'm not sure if the stepped-up basis is applicable.

I dont want to deal with legal issues down the road.