So in this example you would be able to claim $9091 worth of expense in a full year, which would help offset income (rent collected).

Collecting Credit Card Travel Points is a great way to add value to your projects.

I send a change of ownership form, this helps to let them know that all my details and allow me to collect their updated details. 

If borrower's lying, I'll have to do foreclosure again in 3 months but I at least collect the loan mod fee.

We have something called an "inspection period" where the Buyers have the right to conduct any number of due diligence actions (conduct the necessary inspections, collect paperwork, feasibility, collect bids) to make sure the property is sufficient in quality, condition and use of the Buyer's intended use. 

What if you offer under market value but explain to the seller that after X number of years they will be making MORE than their offer thanks to the interest they're collecting.

You are now purely collection the fruits of all the trees you have planted and which are now fully grown.

BiggerPockets is a great collective of people and resources! 

I also find the thrill is in the deal, not necessarily collecting the rent. 

Let me know if you want me to take a look.As a side note, check out Cozy.co for rent collection and also a way to market your property and receive standardized applications.