Before you spend any money, you just need to price everything out (i.e. cost of homes, moving costs, installation, hook ups such as electrical, water, etc). 

You could sell on lease option or installment sale.

Minimum ADU cost including installation for a tiny one is $110000 and a 800 square foot one is $165000.

It’s also prudent to review and update your properties' safety measures, such as installing fire alarms and security systems, as these can sometimes help reduce insurance costs.

I'm looking at buying a self-serve car wash and force value / revenue by installing a car port / detail bay for a mobile detailer to be stationed there weekly and offer custom detail services.

I want to know what happens with vacancy rate and what happens if the market declines or new roofs have to be installed or repaving a parking lot or redoing side sewers.In my opinion, this will take someone with experience hours to graph out.It might be a "dyno-mite" deal, it might be more headaches that I want to put up with.

The fun will continue next April and many after as I attempt report this and other installment sales accurately to uncle sam.

Also, install follow-up. 

Deficiencies, payday loans, credit cards, medical, installment loans.

We have several options to minimize squatters and breakins to steal mechanicals:1) Remove Mechanicals (so can't be stolen), install ArmorGuard doorjamb reinforcement to make it harder to kick in doors and use double-key deadbolts so entry thru a window still doesn't allow opening of a door for greater access.2) Install DAWGS which are metal screens that replace doors and cover windows to deter entry.