Since we purchased it, we brought power back to the property currently set up as 2 RV hookups and additional outlets on a backer board (for a total of 200-amp service), had an RV pad and driveway put in, and had the developed year-round spring well brought back online - there will be a pump house built near the backer board this Spring (1st photo).

Cash flow for businesses require more time which usually means higher returns in $ amount, % of CoC Return is more difficult, and keep in mind your time. my rental takes a hour a month and maybe cash flows $100, $100/hour is nice, but took $60k.

Does the down payment and income requirements make it difficult for first time or low income buyers?   

I was not aware that a manual pull station is required, but I've confirmed with the fire department that in mixed-use buildings, a pull station is required that is hardwired to sound an alarm in the rental unit(s). 

Self directed IRA keep in mind you need to liquidate the assets at 72 and half years old to pay taxes on minimum required distributions. 3.

If so, most states require you honor those terms until it ends.

If the city is ok with STR's, I then check to see what permits are required for STR operation. 

Just make sure you have a rental agreement or lease in your name because you are required by FHA to have a housing expense in order to use the 75% of rents on an upcoming purchase. 

I invest using BRRRR and what I've seen lately as the biggest obstacle to that strategy, has been the initial hard money lenders, with the recent market changes this past year are doing lower ARV percentages ...example going from 80% ARV down to 65-70% ARV to mediate their risk, requiring more out of pocket initial money's. 

I lived in the home for the 12 months required when its your primary residence.