What is this some flat rate agreement that is X amount per month, not tied to rents, no fees for leasing, etc.?

That being said, I think you have a lot of planning to do and loose ends to tie up.

It doesn't make a lot of sense to buy somewhere that's not going to rebound quicker and stronger than elsewhere - CA vs OK for example. 

I had a plumber go over to give me an estimate for converting a half bath to a full bath and he called me back claiming that the plumbing inspector wasn't going to allow him to tie into the type of pipes I have and I was going to have to re-pipe the whole house.  

A heloc is a repayable line of credit tied to any asset.

They try to desperately tie people leaving to the budget deficit but then have to admit it was more about reduced capital gains taxes and job losses in the tech sector.

I already have $50K tied up in the downpayment of the seller financing, so I cannot ask the seller to give me back that $50K so I can put a downpayment on a new loan to pay him off.

@Kelsey P.Check with your state, you should be able to find what the requirements are for any changes in the lease.30 day notice to vacate is typical for a 30 day lease.I would write up a new lease, give it to your tenant to review and ask them to sign or vacate at the end of the current lease.I wouldn't want any old leases tied to a new lease with an addendum.

Landlords should not have their hands tied to move with the market.

I never had any of my own funds tied up in the house.You should make sure to ask an accountant if that rule changed with the recent tax changes in the United States.