Since 3 bed/2baths are the most desirable among buyers, I have hired a contractor to turn the bonus space on the bottom level of my home to a 3rd bedroom (an option offered by the builder, but I didn't need it at the time).

If they pay, that's bonus money.Learn to screen your tenants better.

The % is  a bonus for you. 

Do you know about all of the new bonus depreciation laws and if you can use an online cost seg site for a small residential property?

Some ideas: provide a sign-up bonus of $500 per property we add.

One big advantage of a seller financed note is that, in the future, you can try and negotiate a lower payoff amount If they owe what its worth, you don't get that extra bonus in the future.

@Aj @AJ Brown Master on the main is a bonus, especially for us senior folks.  

Bonus!

They are most likely not cash flowing, probably it is only equity pay down they are getting and appreciation as added bonus.

Bonus is that it has a detached 1 car garage which is not common in the area and a large corner lot.