You should be assessing market rents and raising them based on what the market is doing.

And you do control the outcome based on your deal and Market analysis.A. 

I'm curious because I'm interested in pursuing voucher-based strategies.

Don't use overly rozy projections based on self-management and renting it out forever.2) Higher risk - how do you know which tenant caused the damages or brought in the bed bugs?

If you run a lending as business, your interest will convert to ordinary income and could be passive based on your involvement.

I wouldn't say that people in general like one type over another, but rather people in general cohorts (single, married - no kids, married - with kids, etc.) tend to gravitate towards certain types of properties based on their lifestyles.

C class and lower areas is only where S8 beneficial and that tenant base can be a headache.

Most of those specialty programs (first responder loans, downpayment assistance, etc) are based on local state/county grant programs that back the loan.

Most investors take a look at the available rental units in a particular market,  determine if its a good or bad market based on DOM and either dismiss the market all together or replicate the housing units that are absorbed.

I have been in touch with a couple US based ones that lend in region.