I have a great realtor in SA, I am a private money lender/broker, if you want more details reach out, and lets talk.

I like to outsource that to a local expert.I call/interview property mangement companies in a city that I like and ask them to refer me to a real estate broker who works with investors.  

Any broker who knows high potential opportunities for seller financing in Minnesota?

You can go through insurance brokers to see what's out there.

We originate loans with 100+ lenders and will tell you that you cannot have All of the above :) Just set top 2-3 points of what matters to you most and that can help you in selecting which broker/lender to go with.

Being a mortgage broker, I'm sure my opinion may seem bias, but I suppose it depends on your goals.

Also have you done any pre-dd-  driveby, discussions with broker, property managers and other real estate professionals about this property.   

Banks like to match short term assets with short term liabilities, and vice versa.I don't believe that DSCR loans are "expensive", but they do require a more thorough underwriting and higher amount of financial documentation other private and hard money loans.It generally helps to have a Fractional CFO or Loan Consultant (not a broker) that will work on your behalf to negotiate better DSCR terms and rates.

If you plan to scale ask your largest commercial RE broker for some recommendations.  

Their exit strategy was they would act as a broker and try and sell them off as fast as possible for a profit but I believe they were overpaying for the loans.