My primary residence has a unique feature in that it has come with a 20x40ft double-wide manufactured home in the backyard.Previous owner was using it as a shop but it has wood panel walls and beat to hell 50 year old carpet. 

The answer is turnover costs (different than repairs, vacancy, etc). 60k houses rent to C/C+ residents.

I do not yet have my own primary residence (I still live at home), but I would like to get one soon.

You'll forever more be able to use it as short-term rental, but you won't be able to use or sell it as a residence.

Scouting out a few potential residents I'm interested in purchasing to rehab for resale.

Scouting out a few potential residents I'm interested in purchasing to rehab for resale.

It's a condition of our agreements with them that they stay enrolled with @Paul Ritter & MyCreditTeam.com in their credit enhancement. 

I currently own two properties, one of which is my primary residence, and the other barely breaking even.

Apparently she and many of the other residents suspect that the management company is pocketing monthly fees that are earmarked for improvements to the complex, and has been towing condo owners' cars for nonpayment of disputed bills.She and many of the other residents in the complex are non-native English speakers and of limited means.

It's a great option for 1st time homebuyers, but remember that it's typical for the condition of the loan to be that you must live in the home as your primary residence for 1 year or more in order to qualify!