I'm a huge fan of BiggerPockets.

The problem with getting a city inspector out to check it out, often they will give you one list, then when the work is completed and they do final inspection, other items suddenly pop up.Download a copy of your city regulations about housing so you know a bedroom has a window and a closet, bathroom has a fan/vent or a window, handrails on all stairways (more than 18" high), how many and location for smoke and c/o detectors, etc. 

I don’t mind paying for the right service, but I’m not a fan of leaving money on the table either.

They are what we call "captive QI's. 

I have used the VA loan twice now and am a huge fan.  

Big fan of the podcast. 

In general I’m not a fan of “AirBnBing” someone else’s house.

Tomorrow morning they're going to open up the ceiling and use fans (I think) to direct air upward into the cavities. 

@Shane Woodman an alternative to a bank HELOC if there is captive equity in your existing rentals that you are looking to leverage for your next portfolio purchase would be private lenders who have programs that will allow for cross-collateralization (just make sure you negotiate structured lien releases which allow you to sell or refinance one or more of the collateral properties and also see if the lender will accept a recent appraisal or a BPO).

I am not a fan of low income , its high maintenance .