They don't have anything specific for sorting by furnished spaces but there may be a check box to select for when sorting. 

While the power can't be selectively turned off, it’s really about active management and oversight once the utilities are in the PM's name.

As best as I can tell the issue is with the lender(s) you selected, not the title.

Same as you'd screen anyone else with very close attention paid to which parents you select to guarantee the lease.Are there any specific clauses I should include in a room-by-room lease for a shared living space?

Make sure they send you a copy of the police report so you can follow up with the tenant causing the issues and send them some sort of warning in writing.

Unless you have some sort of subject matter expertise or access to an unfair advantage (cheap labor, ways to source off market deals, etc.), index funds are likely to provide an equal or better return with a MUCH lower hassle factor and more liquidity.

Indianapolis (where I'm a realtor and work with all sorts of investors) is a great market to find that and get a mix of solid appreciation too if you know where to buy

Or are they performing some sort of arbitrage and they are not the end buyer.

What are the metrics for determining site selection?

As far as the sale of a property with a mortgage on it, that all gets sorted out at close. ie, you bring your money, the bank gets what they have coming, the realtor gets what they have coming (if there's one involved) and the seller gets the rest.