I can risk assess every individual based on their background, It is screening 101."

I understand that isn't what you thought initially but 15k is insane to get what you got and ended up with.There is way to much social med. crap that "get rich quick" is a pure and total smoke screen regarding real estate.

Alternatively, I also help landlord/investors rent out their properties and can help place tenants (complete with the application/screening/viewing process). 

Don't wait until it's a problem and then look for a solution; you'll drag out the process.I also recommend that you learn how to screen better.

NJ is very tenant friendly so keeping up with state & municipal requirements are very important, thoroughly screen your tenants, and I always recommend keeping a paper trail of everything.

To my understanding the process is adding my units to a board, waiting for the section 8 representative to contact me when there’s an interested tenant, have an inspection done, screen tenant and have paperwork done correct?

You should have received a default judgement from that court case and that is a public record that any future landlords can see when screening tenants. 

I am a big fan of bnbcalculator and rabbu for quick analysis and screening of properties 

A few things important to our team would be a strong screening/application process, tenant and team communication capabilities, and digital key/gate access integration. 

Make sure your listing is SEO optimized with the right keywords to attract more renters—many property management companies can help with this, along with tenant screening and payment management.