I would look in to California’s strict renter favorable laws and see how many you avoid by being in an owner occupied duplex versus sharing a big single family. 

They typically have less hoops to jump through and less strict guidelines, with the caveat that your rates, points, will be higher. 

This rental is in a town that has very strict policies on the number of STR's, so for the moment it will stay a LTR.

First folks lasted a year, then found jobs in a state where pot is legal recreationally (they actually told that to me,  despite my strict no smoking of anything policy)- second set (in same property, interestingly enough),  have moved from rural South Dakota to a Chicago busy suburb.  

I know what you mean, but the IRA does not bring any advantage in this case, strictly from cash-flow angle. 

For this reason, we keep our applications / criteria strict to help in screening out tenants.

Stick to a strict screening and you wont have any major problems.Why give away hard earned money when you don't have to?

Do you work with Investors that need to adhere to strict timelines and scope of work?

Because of insulation limitations, typically all mobile homes in the northern part of the U.S. are on gas, and only southern homes are on electric when it comes to heating -- strictly due to operating costs.

Of course, Condo has many of its own problems too, like high HOA fee, sometimes very strict HOA board members who make things very rough, issue many HOA violation letters to owner in a short period of time, which make Condo owner's life not so easy; in addition, there are many water leaking damages between Condo Upstairs and Downstairs units, then the Condo Upstairs owner and Condo Downstairs owner need to fight and argue who is responsible for the expensive water damage and Mold problem caused by the water damages, then it may lead to insurance claim, Mold remediation and restoration... many many troubles in Condo.