Second, identify the type of property they demand (ex. well-built townhouse or duplex, with on-site laundry, amenities, built 1980 to 2010, private entrance, etc..). 

Best sites to market your property, the Sec 8 site.

Welcome to the site @John Anselmo!

@Jennifer Wagner welcome to the site.

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

After that it was pretty clear monthly sites was the way to go and if I could get fiber that would be a home run.

We've got a chat tool on the site, but no one to organize the chats right now.

Step on is decontaminating the site, probably busting out the concrete floors and if necessary the soil under it.

-Offer to visit job sites and help design with the investor/owner.

Advice NeededTLDR - Spend an additional $30k now to upgrade the sewer system on-site while the contractor is already mobilized or go with a sewer injection pump which is likely a viable solution the will last for years with proper maintenance.