I'm talking about BRRRR'ing properties to the regular person...who may not have very much.  

One way to check is to look for a sewer "Clean Out" cap. 

When doing the DTI calculation would a lender include money that is received regularly from things like a Real Estate syndication, Mortgage note fund and/or other investments?

@Bruce Woodruff They have a 4 year of clean track record, so I’m hoping.

What was the one thing that really made you successful that you could duplicate regularly?

I would not pay attention to that data.1) The owner is probably getting called regularly, and being asked if they want to sell. 

Back then many PM companies worked out a "family" type deal; the janitor got the basement apartment rent free but always had to be on call and the wife was expected to do her share by cleaning the hallways on a weekly basis (this was fine with mom; she LOVED to clean). 

It is up to you, but I would at least charge her for the time it was vacant and any costs you had as a result of listings and cleaning.

Move in-out (including cleaning fee)Did I forget anything?

Pick something fun and interesting that will attract people to your meetup on a regular basis.* Initially, you will have some meetups where either only a few people show up or none at all.