It was built by my father who was self employed as retirement income for him and my mother, who was a stay-at-home mother and also assisted him in his business.

Without sounding too much like nepotism, my father runs a property management company here in Jacksonville.

My father and I have invested in many mobile homes.

I would think that since the father-in-law would probably make more profit on getting 23% of the net profit over the interest on the 70K even at a hard money rate it would be best to do what benefits the father-in-law more.

Hey BP,I met up with my Brother this weekend at my Father's 90th birthday party. 

That would be a insult to your father.

The other option I looked at was GroundFloor which I found in the bigger pockets directory here for crowd funding, however I believe the interest rate will be high since this is a 0 exp flip.However, my father has been running a contracting business for a very long time and he will be my main resource when flipping these first few when it comes to the rehab portion.

I am in the process of remodeling my father's previous home and getting ready for the market. 

Originally I had a lender approve me for the funds and my father was going to borrow the 40% from his annuity, well the lender decided last minuet the property was to rural, then my fathers annuity fund told him he could not borrow since he borrowed many years ago and supposedly it was written as a loan and since he assumed  it was not written as a loan it was never paid back.

They're currently undergoing litigation to recover the property but don't expect to get much out of them unless they can garnish his wage from the VA.On the other hand, my father is a doctor and when starting at a new clinic, the doctors approached him to buy into the property.