If you can shed any tips or know any FHA lenders drop them down below for me. 

Also, I have done complicated owner financed deals for clients and one issue I see with this deal is that as lender, you want to make sure you have the right to review and approve what the new owner will do with the property.

Check in with @Joseph Chiofalo they are a Nationwide lender he'll point you in the right direction. 

I'm a 25 year residential real estate agent/broker in the Lehigh Valley.  The last 3 years I have been transitioning into investments and development.  I would like to become a full-time real estate investor. I'm work...

I am a Lender / Investor from Washington State.

If not prior to offer, typically a review of financials is part of income producing property or commercial transactions.

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

I would just check with your lender to verify that the property will be eligible for refinancing after the construction loan.

For owner occupied properties federal law requires lenders to verify the ability to repay by the borrower.

But keep getting push back from Lender, and insurance (mainly lender).