I would definitely look into seeing if there are any AirBNB arbitrage companies operating in the area that may be willing to take it on. 

With running this "business" there will be operational input costs.

At $500/mo per door you would have $175,000 cash flow in a year before operating expenses.

If you use a urinal at a Cleveland Cavaliers game go ahead and place a business card on top of the urinal.Wear a name tag everywhere you goGet a name tag that says Realtor with your name underneath it.

You could create an operating agreement granting one of you the powers - but it is a fair amount of energy/time/activity for someone to manage and find deals.

Park Hill Golf Course was owned by a trust, in the wayyy distant past it was previously a dairy farm, but it has been operated as a golf course since the 1930's!

The "easy" answer - short term rentals where your brother participates materially in the operations - this would mean 500+ hours a year.It sounds simple from a tax planning perspective. 

These documents include your operating agreement/ corporate bylaws, articles of organization, certificate of standing, and the EIN letter. 

Landlords mistakenly ASSUME all PMCs offer the exact same services and operate the exact same way, so price is the only differentiator.So, the first question they usually ask a PMC is about fees - instead of asking about services.This also leads them to ASSUME simpler is better when it comes to management contracts.

Analyze properties by looking at gross rental income, operating expenses, and the debt service coverage ratio (DSCR above 1.25 for rentals).