With Section 8 you have to figure you are getting people who have no clue about having to pay for things on their own, and they may have very little respect for your property.
Section 8 Positive: If it is fully subsidized, you get all your money every month
Section 8 Negatives:
1. You have the dregs of society living in your rental.
2. The tennants are yours, not the housing alliance cutting the check to you. If the tennants trash the place and you want to get them out, you have to go through all the steps to get them evicted. In states like NY and FL that have big time tennant's rights, that can be easier said than done.
3. You of course are responsible for the premises. If they destroy the plumbing, and you don't fix it, the housing alliance will find the housing substandard and can cut off payments to you. Then if you want to get rid of the tennants, go back to item 2.
We purchased a Section 8 house that we now live in. The last owner was sited by the housing alliance for violations that could make the house uninhabitable. The tennants caused many of the violations due to damage they caused. The housing alliance doesn't care how the violations happened, they just want them fixed or they stop paying. The former owner freaked out when she got estimates to do the work to bring the house back to standards, and put the house on the market.
That was a stroke of luck for us. Between repairs I have done, and the hyperactive Eastern Long Island real estate market, the value has almost tripled in 7 years.
With the slowing of the real estate market, it is not as liquid as stocks, but I never would have made even close to that return on equities.