Just call up an agent and ask them if they are the best in their market , odds are the first call you make will be the one .

No problems with rust but do have to deal with hard water; they have a chemical treatment called a pillow that takes care of that.

As a MF agent who spends a large amount of time calling apartment owners (or rather, numbers purporting to be apartment owners), please believe me that reaching out to random run down buildings owners is unlikely to get you any deals.

Here's their page called My Lodge Tax, for STRs. https://www.avalara.com/mylodgetax/en/index.html Process returns, Save time and hassle.

These programs are called Equity Share programs.

Once you get this information to them you will also be required to do a zoom call and walk around showing them some of this info - the office, any signage, and locks on doors.

Owners mistakenly ASSUME all PMCs offer the exact SAME SERVICES and PERFORM those services EXACTLY THE SAME WAY, so price is the only differentiator – so, they often select the first PMC they call or that calls them back!

That way you’d still really cash flow and you’d have some depreciation, but that’s your hypothetical call. 

If there is any issue I call plumber handyman.

@Adedayo Adetunji people that break into a property & occupy it are called "squatters".On September 24, 2014, three new Michigan Statutes went into effect to make squatting a crime and give landlords more options to remove them (see Michigan HB 5069/PA223, HB 5070/PA224, HB 5071/PA225).