Unfortunately, as is common with specific CPA questions, you are not going to get an easy answer.

Kristine Marie Poe  Then you have excellent phone skills another skill that is usually acquired by trial and error and experience ...

Depending upon where you are in PA, zoning and land use may not be a problem, but apparently there are lots of hoa's that sue and or get sued as a result of common issues, so insurance can be crazy expensive  or prohibitive.  

It can also grow in rooms that have high humidity as well, above 60%, very common in attics and closets filled full of clutter in the basement. 

I would think in at least some of the markets your area that is a fairly common way of finding tenants. 

The next best option is to use some common space and install them there where they are shared.

Through an error of omission, he failed to inform the rehabber who bought it that a violent death had occurred on the property.

They don't think about pets, their affect on common areas shared with other tenants, and the landlord's responsibility to provide safe common areas. 

He rents/rented a room off my home that has its own entrance (so no common access to my part).

Is the name a common name?