Yes, you can rent by the room no matter how many bedrooms you have unless for some reason your local jurisdiction prohibits it.

You find them by spending a little bit of capital and time on joining local real estate groups. 

Troy,In addition to what Melanie listed I would add, you need to find out about the local, state, or federal guidelines (if any) that impact the setup of the property.  

I'm local to downtown Charleston.

Leave bad reviews on sites he uses for advertising online. 

I worked with local investors to buy, rehab, and lease or sell over 400 units. 

Have you instead considered attending a local real estate meetup and asking for connections/opinions in that avenue? 

I know most advertised foreclosures never make it to the sheriff sale.

For networking I belong to a local "Independent Agents" organization (no franchises allowed).

Be prepared to provide evidence supporting your arguments and respond to any questions from the assessor or assessment appeals board.Stay Informed about Local Tax Policies: Keep abreast of local tax policies, assessment methodologies, and any changes to property tax laws or regulations that may affect your property's valuation.