They collected the rent but did not pay mortgage and changed the title sold to others and disappeared. 

In the only negative tenant experience that I've had thus far, he also helped out by filing for debt collection & cleared up some things that I didn't know. 

If you only manage to collect 9 months of rent a year followed by a nasty protracted eviction after which a tenant leaves your property thrashed, those returns start to look a bit different.

Who is doing this and what resources do you go to for more about this? 

For a C/D neighborhood, paying somebody higher rates might be worth it as long as they can collect the rents. 

You can collect the buyer side commission from the seller of the house, plus an assignment fee from the investor.You may want to discuss this business model with @Roy Cleeves.

I make sure the HVAC is in good shape or replace it.You can always make bigger and better improvements later during future turnovers.Get it up and running and start collecting rent ASAP.

I have found another deal that I believe is a home run and my resources are very limited. 

It's a big book full of practical advice from marketing, screening, leases, collecting rent, etc.

Welcome to the beautiful world of turnkey investing, where the PM takes care of all the work and you just get to sit back and collect rent checks.Back to seriousness, I would question whether or not the $1000 early termination fee is even enforceable.