After all PITI, utility, and services (lawncare and cleaning) costs I have $7,225.I set aside 25% of this for my maintenance fund.The remainder funds my lifestyle, wife has a Tesla, and quarterly vacations as well as business growth.In 2023 I am tracking to build 4 duplex units designed as room rentals funded in part from a recent land sale.

The IRS has tended to look suspiciously at refinances right before your sale and 1031 as a way of accessing profit. 

My question is, do you know where we could advertise this type of sale?

There are a lot of agents who wholesale in PA, but you should know that agents who wholesale have to pay their brokerage their portion of the commission on their spread.

There was a company in AZ that was doing this but I think they were also carrying a portion of the financing.

Buy from their off sale lists.  

Loopnet is a graveyard of dead properties for sale.

This house is in an area that's eligible for USDA.Brandon Home For Sale 

There have been some loan sales tossed aruond recently where the last assignment was to them, so we assumed they were their loans.

Whereas a bandit sign will typically be vaguer and suggest “we buy houses,” personal property signs will state the home is for sale.