Should be at least 10%.3) What about tenant damages and nonperformance?

A tenant who fails to maintain a rental property could end up costing you more in property damage and court fees than the amount of rent they're paying you upfront. 

You can also look at our major highway systems and in places like boston they are leasing air rights over major highways for building as well.

The house has been through two hurricanes now with no damage or flooding, so it is pretty low risk from that standpoint.

Just set up a nice place, air,vrbo and direct and the rest takes care of itself(considering you are investing in place where STR are allowed and have done associated diligence)

California: The Pinnacle of LuxuryCalifornia has been a leader in the luxury property market for decades, but specific cities continue to stand out due to demand and premium prices.Los Angeles: Beverly Hills, Malibu, and Bel-Air are names synonymous with luxury.

You can easily unclog a faucet, and even showers can be unclogged using an air compressor.

What if there are already damages to the property that you could have deducted and tenant keeps whole thing rather than submitting to new management? 

This also allows for property owners to more easily write-off assets that get damaged/destroyed as the value of these assets is determined as part of the study.

If you notice pooling water or suspect a leak, there could be unseen damage to the interior.