By that, I mean they should own the properties first, renovate it all in-house, place a tenant prior to closing AND management the property in-house.

I would need to know the following to calculate your equity:How much is the property currentlyly worth prior to rehab?

Now I'll run this through a spreadsheet but let's just say conservatively I'd be making 50K a year for the 6-9 years prior to that 108K year after inflation and time do their thing.

Personally, i recommend you learn as much as possible about REI and the path you want to take prior doing the refi on your house or any other moves. 

SO I will be obtaining two roof inspections prior to buying.

I convinced a prior buyer to leave cash in escrow and that I would sell the contract and them double his investment from the "contract sale".

Anyone who has prior knowledge that can give some advice.

Hey Lee, I am not a student but in my opinion unless you have the extra cash to invest in mentoring programs i say try to learn whatever they teach on your own prior to using your "investment" money for a course. 

They want to see liquid assets that are enough to pay the holding costs during the rehab and if you have any experience or prior successes rehabbing homes.

I do have experience renting out and managing my parents old home; however, I just jumped in it without any prior research or knowledge about rental property investing.