You have multiple ideas including multi family, SFR, perhaps Airbnb and even farmland or running a business renting out to farmers for the agricultural exemption.

Buyer paid all closing costs, including owner-finance related docs (e.g., note).  

If, according to your local laws, the unit is considered abandoned you are usually ok to change the locks and begin looking for a new renter. typically this may included removing all items, leaving keys on counter, or canceling utilities, but it may vary state to state.

I've read everything I could find including the new amendments but this hasn't been addressed as far as I can tell.Primary sfr in dfw, $250k value, $170k loanI want to refi to a 1st of $150k and $50k heloc 2nd with initial draw of $20k. 

Including leaks.

I recently had a tenant that complained about everything including kids playing, cats going into her yard, us repairing an oven instead of replacing, etc. 

And if so, what contingies should I include in the contract so if it isnt worth it I can backout if needed.I appreciate any feedback.

Make sure that amount includes all taxing entities.   

While others (including myself) are adamantly against getting personal with the tenant or helping out. 

Careful on internet advice MINE INCLUDED... we are all just people..