I believe Mark is suggesting you take a commercial loan against at least 5 properties, pay off the traditional mortgages, and then they disappear from your 10 limit count.I posted asking questions about this earlier and my banker confirmed that it "works like that" this afternoon.

Do you have a relationship with a banker?

I am looking to gain further knowledge of the local market, network with other investors, bankers, contractors, etc. to better establish myself and my place in the industry.

Sidenote to Readers: In banking terms MM means millions and M means thousands; can get confusing when you ask for a $150k line of credit and the banker sends you a commitment letter stating $150M.  

My question is would the banker go for a seller financing the 3.5 % down and going FHA for the rest.

He can speak with other bankers with the details of his situation to determine if it would be treated differently.In your scenario of moving residences, Yes, the currently residence will be counted on your DTI.

Speak with a commercial banker at a small local bank or credit union.  

Could do either Heloc, heloan, or find  commercial banker(s) (not residential bankers) that basically secure the new loan with both properties. 

The mind of a banker is one of the mysteries of life, so I just assume they don't have a functioning brain now days.

You need to deal with Business Bankers.