On credit score we look more for a pattern of responsibility - for example, do they pay WeEnergies like clockwork, but their credit got dinged by medical bills?

@Bettina F. one tip for permanent marker removal I learnt from one of the janitorial staff at the medical clinic where I work is to use bug spray.

Unfortunately the military medically retired me.

I have no money saved as I have expenses, (I am trying to cut back), and past medical issues that ran m y credit to 630.

My tenants are, typically, class A tenants though... medical students, law students, etc.

Cap rates for quality are generally 7 to 8 range for medical office.

For example, you can deduct certain medical expenses in NJ, but not in Pennsylvania, but in Pennsylvania you can deduct unreimbursed business expenses, but not in Texas, because there is NO income tax in Texas.Jim Kennedy CPA 

I disregard student loans and medical debt.

There is a lot of the retail sector doing great right now (auto stores, Davita dialysis, most medical, grocery store, dollar store, some QSR with drive thru, etc.)  

One doesn't have to stick to MFH, it could be MHP, storage, medical offices and so forth. 2) Passive income doesn't have to come from real estate alone.