I bet he had people telling him that mobile homes were a bad idea, and that he was selling trailer trash. 

The bet is that the people will continue to rise every day and go to work, which we will, so long as we are poor enough.

I bet there's a hard money lender in your area who would look at it to give you short-term, bridge financing. 

There aren't really any formulas for this, your best bet might be to look at the pictures in rental comps other than that I would estimate the difference to be about $100 in rent for every $1000 of rental value if everything in a non-updated unit is clean, usable and looks reasonably nice.

You're best bet is to check meetup.com to see whats being scheduled.

@Nick Thomas, I'll bet it's a lot skinnier deal than you think.

sounds like you have dealt with all the sharks.. if it takes a really long time to evict someone in that state your best bet maybe to let it go to foreclosure and if it bids up which it could if your buyers are already offering you whats owed. they would not do that if there was not equity above whats owed. your mom would get the overage as long as there is not junior debt.also since her credit is trashed and if you can handle her housing.. she can just stay as long as possible until she gets evicted and then just walk out the door..

But having Boeing close by, I bet they have contractors that come in and need short term rentals.

I would be willing to bet the person selling you the property is praying you are not getting opinions like mine. 

I bet they know the answers.Also a good background check will tell you most of what you need to know.