My father in-law verbally and immediately agreed without any sort of paperwork, etc.

However, my grandparents are the ones who started it all and my father already had a lot of resources at his finger tips when he began.

I am doing this deal with my father he likes doing things old school so it must be a physical bank.

My father is considering a HELoC to fund my real estate investment What would be his pay structure?

It could also be siblings that were married and hence different names, or different fathers. 

Dube could be persuaded to revise their work.Finally, if you are interested in commercial real-estate (larger apartment buildings, office complexes, strip malls, factories, etc) then "Commercial Real Estate Investing" by the father and son team of Pierre & Claude Boiron, while a little pricey and fairly Ontario centric in its examples and some of its material, is one of the most thorough introductory references you will find.

I recall back on younger years when Dad would try to give me the guidance and advice most fathers do. let's just say more often than not i robbed him of the opportunity.

The consult won't be super high pressure/competitive since he's the father of a friend of my wife's and I'm the only Realtor he's reached out to. 

Before I knew any better my father left my sister and I a home out of state and we called a wholesaler to buy it from us at a huge discount ( I am still sick over it ).

My husband and I would like to do a flip and partner with my father.