It is actually a great way to solve complex real estate challenges/problems, but is not well known or popular. 

ACH is a far more convenient and popular option for rental payments in our industry.Here's an article our staff wrote about ACH vs Check last month that might help you make up your mind:  https://www.rentecdirect.com/blog/2016/05/ach-vs-checks-better/

This is becoming more popular with BofA, Nationstar and Ocwen.

I use very detailed key words and I target very specific areas.It can be cheaper to target less popular areas.

San Francisco and LA are popular too but it seems that prices have become so high in those 2 places that Chinese investors are starting to focus more on Seattle.  

https://www.biggerpockets.com/blog/short-term-rental-loans-a...DSCR Loans: Terms to Know When Working With These Popular Rental Loanhttps://www.biggerpockets.com/blog/dscr-loans-terms-to-knowWhat’s Next For DSCR Loans?

LOL  General Contractors spend 8 yrs or framing, pouring concrete, shearing, roofing, drywall & a litany of other tasks that are (contrary to popular belief) they go to school, sit for a 2 day test on all trades and business and professions codes/laws.

Creative financing usually becomes popular when either 1) interest rates rise or 2) the credit market freezes.So seller financing became really popular in the 70s and early 80s because interest rates had skyrocketed.

On another note, I know this is not a popular opinion, but I wrote a BP blog about why I feel sub-to should be illegal. 

I don’t know much about management fees, but from what I’ve found is that they rival HOAs in popular STR markets2.