I've heard of people doing this, but you need to be rehabbing it enough to make it higher value so ideally you need to be purchasing something that needs some rehab so that you can increase the equity because otherwise you're not gonna have enough equity to pull out

You can tell him the people on BP think it's not a good idea. 

You might be some answers here but local people will be better. 

(Many people just assume it'll be fully tax-free because they lived in it somewhere)

It works great for many people -- not me -- but it might be your best option considering your distance. 

Quote from @Josh Lansberry: You will hear a lot of people bad-mouth him, but Dave Ramsey can teach you how to get financially savvy real quick.

Not the cash flow play a lot of people expect. 

I've found that the more you share, the more you can grow your network and connect with like-minded people.

Lots of people who have trailers don't own the property they are on and sell them.As for the owner of the land expecting tenants to do repairs-there shouldn't be many repairs required to the land, just the trailer that is on it (which your grandmother owns and should be responsible for maintaining). 

Most of that is not really worth much to most people.