Try talking to local banks who want to do business with you.

Take that for what it is.I like markets as an investor and business owner with median pricing close to or below the median average for the nation.  

There is a barrier to entry, and the city is pro business, but our market had much better metrics.Lower entry points should not factor into getting in a market.

Sorry for late response, I have been busy with renovations on a current rental.

I finished my business plan finally recently.

It's running a business NOT renting a house.  

Their entire business plan is wait a few days to come out, charge  deductible, go back to the office to order a part or two that will come in a day or two.

Terms such as interest rates and payment schedules are typically negotiable.Combining creative financing with seller financing can include strategies like:Subject-to and Seller Financing: Taking over the seller's mortgage and financing the equity portion through the seller.Lease Option: Renting with an option to buy while negotiating seller financing for part of the purchase.Wraparound Mortgage: Keeping the seller's existing loan while they finance a new loan that includes the balance.To proceed, consider connecting with experienced investors, understanding local legal implications, and attending networking events to gather insights.

What broker would sponsor me considering I'm not intending to become a full time Realtor and give them regular business?

Its not personal, its business.