First, clean up your house so you can expand it.

what it sounds like you are asking is illegal in many ways, section 8 laws, local laws, duel contract laws that conflict, there always has been also those out there looking to catch you breaking them,  avoid it, dont offer it, dont entertain it, there is leeway up if the tenant meets certain conditions, say need 1 floor rental, if not rent may be inflated over realistic market, which is what rented at not listed at, keeping in mind sec 8 market rents also include utilities paid, you can usually reach by email fastest, they have set chart, heat type, neighborhood etc, more than listings found online

Outfit the space as turnkey for an appropriate business (smoothie shop, dry cleaning substation, etc.) and sell the “business” with a small down payment, receiving a monthly payment for the business payoff + rent/3.

. - along with inconsistent incomeTo be honest this person should not be investing in real estate and focus their time and energy on getting a stable w2 or income and get their credit cleaned up first

Reno consisted of gutting and replacing the kitchen and bathrooms, replacing the floors, light fixtures, HVAC and roof.

I have made a lot of improvements, upgraded the bathroom/floors throughout the home and kitchen cabinets 

Luckily, the brother left at the agreed on time and I was able to being the renovation.Reno consisted of gutting and replacing the kitchen and bathrooms, replacing the floors, light fixtures, HVAC and roof.

The house is rented by floor, technically as solo units, but I know that one group is renting all 4 units right now (4 floors = 4 units).

When you look at the percentage of "clean" energy produced by each state, Kentucky is ranked 37 out of 50.

I think most locals are aware of the history of STRs proposals/cases in Portsmouth, Laconia’s existing restrictions limiting non-owner occupied STRs to resort/shorefront only, VT's local option tax that allows a 1% tax above the state's existing 9% tax, Portland cap on STR permits and increases tied to inflation, and it's also probably a good idea for folks to understand NH's Senate Bill 249, which proposed a "ban of local bans" around STRs and basically died on the floor(?)