I could write a lot about it here, so I will try to be as brief as possible and still get the story in.

If the write offs are for medical bills...that's one thing.

Then you take the kitchen sink....and then....at what point do you start the eviction process or do you just write it off as a squatter house and move-on after 9 to 12 months?

I could write an entire book about how much I can't stand them. 

But I don't see why I'd prepare the LLC's docs/ operating agreement for two reasons: (1) it brings about too much liability for me, since I don't practice law and write contracts day in, day out and (2) if I truly have the client's best interest in mind, shouldn't I refer my client to a specialist who is truly an expert in the area instead of trying to retain that revenue?

In future, if you don't know the occupant, you should write John and/or Jane Doe and all others in possession.

I am not the seller - I am writing on behalf of the seller. 

You could write an additional condition into your offers that your ARV must equal or exceed the appraiser's ARV estimate.  

He advised to put everything in writing, specifically that there was an offer to help pay for alternate accommodations and that the tenants chose to stay, stating that they have been advised to talk to their family physicians to assess their personal risks, and have the property manager and both tenants sign.  

You'll want to differential between listed and off market property offers, of course.There are lots of different ways to write up an offer and either tie up a property or complete a purchase.