Most folks struggle to get over the hump and never invest because every property comes with an element of risk. 

He has rejected larger offers and suggested I invest $5,000 for an 8-12% stake in the venture.They uses a cost-free retail space and a reliable, but paid event venue and has 100 attendees weekly.

Anyone wanting to speak to me personally I’m an open book feel free to reach out to me personally at 1-503-740-6029 thats my personal cell phone. 

please do note fannie mae doesn't allow excess rent income more than DSCR 1.0 for primary house so you can't offset excess income for next primary or to reduce DTI so if you can plan it ahead carefully this could be the most profitable approach with the least risk possible. 

Are flat-fee MLS sites or otherwise free listing sites like Craigslist the only options?

Obviously there is a lot to discuss on this topic, but for a very quick glance, here are a few pro's and con's to consider when thinking about section 8 rentals:Pros:Guaranteed Rent Payments -> The government pays a significant portion (if not all) of the rent directly to the landlord, providing a reliable and steady income stream.High Demand -> There is often a high demand for Section 8 housing, reducing the risk of long vacancy periods.Cons:Inspection and Compliance -> The property must pass an initial inspection and comply with health and safety standards set by the local housing authority.

If you are looking for lowest barrier to entry along with least risk, there are pockets of South Buffalo, the West  side, and Lockport that all meet that criteria. 

One has a provision I have to offer it to the other investors first but I have already done this and now I am free and clear to sell it to another party.Bummer there is no platform for this, seems like a good idea for a startup!

Feel free to share your experiences and insights as I am eager to hear from those actively involved in the market.  

Probably the safest option and limit the risk involved.