I could be wrong..Also since your a licensed agent why don't you just start your own company and hire experience managers to work for you.. 

Easiest and least costly is to go there and spend a week or so to get everything in order.Another one is to hire someone trustworthy and pay them to put it in their garage or in a storage unit for a month

Prioritize filling units with well-screened tenants and consider hiring a property manager for oversight.

I ended up hiring an architect for floor plans and to deal with the city.

Perhaps a nice 1950's built bungalow.Always hire a 3rd party property inspector to give you an unbiased feel for the home.

Build an SMB on top of your real estate (the reverse of #2)Short-term rentals and high owner-participation real estate businesses can have great returns.Obviously not for you if you just want passive RE.We are in the deep end here, where each case should be judged on its own facts and merits by your CPA.You should hire a professional to review your particular situation before you make an investment.

If you do not like bookkeeping/accounting/technology, hire a bookkeeper specializing in real estate investors.

Hire licensed and insured vendors.  

Quote from @Sanjay Bhagat: 1) Should I hire a third party accountant to interpret the deal sponsor track record for due diligence?

I am considering other options to see if there are ways I can hire someone to just do showing only and mamage my own rent collection through Zillow app, I also have my own contactors to do maintenance but have been paying monthly fee to my property manager who has done literally nothing, they also never answered my calls.It definitely sounds like you need to reevaluate your relationship with your property manager.