Assessing brokers based on their transaction history and success in the market carries more weight than simply focusing on the highest price offered.

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

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

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.

I'm also confused by the nature of your charity.

Investing in Bitcoin is investing in something that is based on nothing more than limited quantity.

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.