And with brokerages now offering new agent programs where they will pay 100% of the expense to get licensed, there is literally no reason not to. 

The Housing Choice Voucher program here is run by CMHA (Columbus Metropolitan Housing Authority).

My brokerage is part of Anywhere RE, we have the biggest names under our umbrella (ERA, Caldwell Banker, Sotherbys, BHG, Century 21) and we have a fantastic referral program that I can hand pick an agent anywhere in the country and interview them for you to make sure they have the qualities you are looking for.

Some programs are 100% of FMR, some 105% or greater (like the Walker Settlement Voucher in Dallas Housing Authority), some less.

I have seen some properties on MLS that I contact my realtor and they may know right away the reason it isn't selling from showing it previously, or they can review the realtor comments that aren't viewable by the public on MLS.Other potential reasons I have seen properties listed on MLS for a long time. 1) Some investors may not be comfortable inheriting existing tenants.2) It may be it is a class C neighborhood. 3) Structural issues.

Once the public works are there they will just revert to existing zoning which in my case is SFH. 

Publication 15, Employer's Tax Guide, says only this much:...Payments for the services of a child under age 18 who works for their parent in a trade or business aren't subject to social security andMedicare taxes...No definition, and IRS publications are not really law anyway.

As a landlord, you are representing yourself to the public as a business. 

See the chart from Fair Isaac Company (FICO) below: FICO Score Pct of Population Default Probability 800 or more 13.00% 1.00% 750-799 27.00% 1.00% 700-749 18.00% 4.40% 650-699 15.00% 8.90% 600-649 12.00% 15.80% 550-599 8.00% 22.50% 500-549 5.00% 28.40% Less than 499 2.00% 41.00% Source: Fair Isaac CompanyAccording to this chart, investors should use corresponding vacancy+tenant-nonperformance factors of approximately 5% for Class A rentals, 10% for Class B and 20% for Class C.To address Class C payment challenges, many industry "experts" are now selling programs to newbie investors about how Section 8 tenants are the cure.

And have you looked into the link below, the Invest Southwest program?