That cut down on complaints about not having enough toiletries for people with longer stays. 

That's a technical banking and legal term.

Honestly, I would not sign any lease until you positively close and legally own the property.

Is it legal to offer to rent the property back to the homeowner who already lost their home to foreclosure when negotiating the redemption rights purchase? 

The AP has to be open, notorious and hostile...those terms have a legal meaning and essentially it is that you as the owner have been fully deprived of your right to the property.Absent those items above, it sounds like at best they have another legal right which is a "prescriptive easement".

If you need financial help, ask under the "Finance, Tax, and Legal" forum.

Make sure to get legal advice on what you can and can’t do for bill back and what kind of notice period is required in your state. 

Well anyone can write anything into a contract, but whether it is legal and enforceable is for the courts to decide...It is State law here that a contractor must call 811 or they are liable for the costs.

This extra road frontage now also qualifies my property to be able to be legally converted into a triplex from a duplex.

If you need financial help, ask under the "Finance, Tax, and Legal" forum.