If you run C or D properties with poor screening, then cash is your best bet.

If you talk with mom and pops who run C and D a good amount of them collect the rent in some old fashion way like knock on the door.. :)  

I never under-estimate those that can run C grade properties at a nice profit.

just guessing but it sounds like normal C class activity throughout the US frankly.. older properties that need cap ex.. tough weather environment.. renters that are income challenged . etc etc.Contrary to others I would concentrate on paying one off at a time.. the best way to run C and D class is to have them paid off as soon as possible, you have a good job your young.. if you can get these paid off that would be a goal... or just sell them all and recalibrate into a better ( nicer asset class) that is not so maintenance heavy and better renter class).I also don't think most people after a few years really know how much or how little they make on their rentals..

I don’t want to run C- properties that require a lot of maintenance. 2.