make sure your city will issue building permit for that structure before you proceed. 

I hired a contractor who did the work and pulled the permits. 

Usually for someone that has a caregiver living in the unit with the disabled person we would require that the company employees were screened for criminal by that company,we listed as tenant #2 on the lease as  "Authorized caregiver of XXX Company Name" as tenant #2, as a caregiver, because they usually wouldn't stay the entire day with the person, this permitted a rotation for the caregivers and worked out fine for us, as the caregiver wasn't financially responsible for the rent. 

I have some experience with Airbnb as well which could be a great option for house hacking (if permitted in the city). 

In the event a customer files bankruptcy, the situation will be addressed appropriately with that customer depending on the type of bankruptcy they have filed.

Obviously I haven't seen your lease but Check , Google ' Landlord tenant laws " for your state to see if they are permitted to charge a lease break fee, but that's usually done upfront with both parties agreeing to that signatures from all. 

Customize the terms of exactly how you will be compensated.

I live in a townhouse and after months of sending complaints to the HOA Board about pet owners (including board-members) violating the rules by permitting their pet to poop on the common areas and in front of my window I finely received a reply stating that that is fine as long as they pick up after their pets afterwords.

If you fail to remain competitive your customers will go elsewhere.

Most recently I've built custom cabinetry.