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.

Example, analysis fees, marketing fees, management fees, etc.

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

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

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

And to manage 10 homes with a 9-5 is a PITA even with a management company.

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

Or, if you don't have experience managing a multifamily property post construction that could be something to look at.