Let me know if you’re interested in the STR method.

I have heard of a few different ways to do this including the waterfall method where the investor receives 75% until their investment is returned and then move into 50/50. 

Some very good trainers are female (as long as your wife/girlfreind doesn't mind--and she may).If you like steak here is an easy Athletic Training Diet: The Vertical diet... https://www.youtube.com/watch?

Rich information may be obtained from websites such as Realtor.com, Zillow, and local real estate blogs and forums.For out-of-state investors, investor-friendly agents are essential since they are knowledgeable about investment methods, have access to market data for the rental market, and can identify what qualities make a property a suitable investment.

Or have you satisfied this criteria using some other method?

I used these methods in combination to add a new account to track personal and business (non-rental) expenses from January 1 this year. 

Not saying one method is the best one for everyone.

I know financing a mobile home with typical methods (conventional, DSCR) can be tough or entirely infeasible so way to get creative!

All of the advice listed this full of knowledge and I will definitely try those methods as well.

I completely agree with @Bart Hedgcock, my .02 from personal experience with Phil:  My wife and I took his weekend "vip" training last year, and it's a very well done introduction to several strategies and methods for creative REI.