I don't remember the exact cost when I did it but I remember thinking it was cheaper than expected.I didn't see a comment mentioning that you should just include utilities in the rent and increase it based off that so I'll be that guy.

I used a realtor to help me with MLS posts and find off market deals.

You’re not going to find a safe way to do what you want unless you or the “buyer” has enough cash to pay off the note. 

Borrowing against your paid off house without an income puts way too much pressure on the success of whatever deal/project you decide to pursue. 

There is another house about two blocks over that I have the opportunity to buy off market under market value.

Right now, you have to be able to source off market properties or be willing to force cash flow with large down payments. 

@Anastasia P.Not off the top of my head, sorry.

You can do a lot off of spreadsheets in the beginning, but eventually you need automation. 

Since she was a first time homebuyer we were able to save her 1% off her interest rate!

Welcome to the real estate hive.. are you open to exploring off-market listings through your network?