Quote from @Seth McGathey: I recently had an applicant for a rental where she wants to run the 3 bedroom lower unit of my duplex as a group home for elderly.

Housing elderly clients as part of a business can cross from a standard residential tenancy into a group home or commercial use, depending on local zoning, occupancy rules, and licensing requirements.

It sounds like the elderly need some type of assistance.

Tensions are high because the tenant ("Lily") is elderly and senile. 

I purchased the three Townhomes about 3-4 years ago...I try to be a kind tenant and am hesitant to kick-out good tenants; two just had a newborn and the other are elderly and just moved in last Fall...

In the long-term, I think SFH with ADUs will sell very well because I do believe multi-generational living will be more and more common with 1) more immigrants moving to the bay area with their elderly parents and 2) baby boomers starting to take care of their elderly parents who need long-term care.

99% chance it’s a wholesaling trying to take advantage of elderly or ignorant owners.

The elderly mother is over 90 years old, her husband has passed away, and her adult daughter continues to live with her.

. * Inherited 2 tenants, one was an elderly hoarder with a pit bull and the realtor may have understated the state of the unit (I invest remotely).* Elderly tenant had roaches, which got into neighboring unit and caused complaints there.* Elderly tenants dog nipped/bit a service person, service person did not pursue the matter.* Elderly tenant subsequently died (not in the unit) and had to dig through how to handle with remaining family.

There comes a point where many elderly no longer have the capacity to make their own decisions and in my experience families often wait too long and adverse events happen as a result.