I want to be out of land-lording for this property and just want to be the bank. 

Is it worth it for "free" land and what kind of document showing I'm attached to this property could I get?

Also the bank is going to look at whether or not they think you can close and run the unit properly.

He also agreed to coaching and watching over maintenance, if something happened to help deal with it, all his connections, and backing when I go to refinance with a bank.

When he was two, we could not pass a for sale sign on a lawn without him campaigning to go "walk the property".At three we gave him a piggy-bank ... or, rather, a cow-bank called "Moolah the Money Savvy Cow" {NFI} which has four compartments: Save, Spend, Donate, & Invest and started teaching him about  these different ways he can use his money.  

I personally can't stand banks now after developing relationships with private money lenders.

He was a Army doctor got into writing scrips about 10 years ago in SOCAL and has made bank.. better than writing Opiod scripts

You will find the loan terms to be not as good because the lender instead of borrowing the money from the main banking system will instead have to self fund the loan internally and the money cost more to them.

Builder would love to buy me out but his bank wants more cash than he has.

Rustin Nordsven If you have mortgages on them the lender will not let you transfer title without due on sale clause.Answer the question, if the LLC does not have income / funds for 2 years the bank typically will also have you guaranty the loan and it probably would go on your credit report