Quote from @Alan Mills: Got an inspection objection back with something I’ve not seen on my other rehab’s (this is a Colorado property):“The seller agrees to have a licensed plumber install external sewer cleanouts per city code and scope the sewer line ensuring its integrity.”This was a full interior/gut rehab and almost everything is brand new.

The seller, or the buyer?

I cold call and go direct to the seller and I have a 3 person team that pretty much just calls all day long for me.

Seller financed (probably) won't be reported to the credit bureaus and so won't impact your credit score at all.

Plus, how can you get the best deal for the seller without exposure on major platforms?

Do they use a servicing company to make the payments directly to the , or do they make payments directly to the seller and hope they pass them on to the lender?

A sellers market in general.

The problem I ran into was that most buyers that wanted to do it, couldn't bridge the equity gap and the sellers needed the equity to go buy the next one.   

Our negotiation approach focused on building rapport with the seller, allowing us to secure the property below market value.

When a seller lists their property, they often agree to compensate the buyer's agent separately, though the exact terms depend on the offer made.