That includes real estate agent, title preferably owned by attorney, seasoned STR property manager etc. 

Once you have managing it down and you've got some experience then you may want to consider making it section 8 eligible.I imagine you're going to get lots of responses telling you to avoid section 8 all together.

I managed the properties myself, and was offered a job out of state that required long-term international travel. 

FHA loans are generally more straightforward, with lenders typically requiring verification of your credit and income.Be prepared to provide financial documentation, as the lender will need to ensure you can manage the additional mortgage payments.

I see that you have management fees set at 8% and interest rate of 4%.

House hacking will also give you some personal "property management" experience.

They might also have relationships with contractors, wholesalers, and property managers, which can be invaluable to an investor.

You can win or lose buying from a "turnkey" company or buying from a "property management" company.

I am concern with the high interest rates but even with those I managed to cash flow which is what I am looking for. 

Should I charge each nurse the application fee?