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

@Jae Yoo you have a few options:1) Hire an attorney to write a threatening letter.

My best suggestion is to hire a real estate agent.

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

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

hire a VA on upwork to do that for you.

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

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.

Hire licensed and insured vendors.