They need to have proof of insurance (indemnifying you) and can pass your background check (see your local unified judicial system website to search background).Where to find these tradespeople? 

The main issues I see in Portsmouth is to thoroughly do your tenant background checks as I see a lot of people kicking doors when trying to rent.

@Jeremy Muehlbauer before you do anything check for unrelated persons ordinances in your area, that will tell you if you can move forward easily or you would need something like a boarding house license.

Make sure to check out @David Pere's Military to Millionaire.

Definitely would check!

Never dealt with sound proofing so be good to check that out.Good luck.

I checked Redfin and I'm seeing properties at around 75-90k a door.

(BUT when qualifying the tenant's income, they only need to qualify for their portion). 2) Consult an attorneyyyyyyyyy :)3) Standard I've always used is no more than 7 days per month and max of 14 days per year, otherwise they would be considered an Occupant and need to complete a background check and add to the lease. 

Check your facts.

Why hold in Baltimore when you can hopefully get it vacant, sell it, and use the money for another property closer to you or use that money to build an ADU.Have you checked the regulations on ADU and impervious cover for your house?