This method has enabled me to buy nine houses since 2011.

Days of the week are of little importance any more unless I have to work with others that are corporate...lawyers, accountants etc. 100% correct.

In order to work with either of those scenarios, I'll need to purchase the property in my name and not a business, correct?  

I have read varying articles saying between 1.5 and 7% -this is correct, when it comes to rent to own there is no set price for the option deposit.

If he is serious about pursuing this then he will hire an attorney and you can defend your position.If you were dishonest and knowingly hid a problem in order to take advantage of the buyer, then I recommend you do the right thing and help correct it before he comes after you and asks for more.

What would be the best method of a loan in order to secure the down payment for the new home? 

The top were mdf and whoever drilled the holes messed up the jig so the holes weren't correct.

What would be the best method of a loan in order to secure the down payment for the new home?

The assignment assigns the Mortgage to youThe allonge transfers the note to youAs for due diligence :Are the notes Dodd Frank CompliantHow much are you investing relative to the current unpaid balance (UPB0How much are you investing relative to the current Value of the propertyAre there unpaid taxes on the propertyAre there any unpaid liens on the propertyAre the borrowers currentHave the loans been professionally serviced so you know the pay history and the correct UPBDo the borrowers pay on timehow long have the buyers been in the property, do they pay on timeAre taxes and insurance escrowedIs there insurance naming the lender is there a lenders title policy

I am not planning to buy a 100 homes a year, just to methodically buy (cash) and sell houses using equity and my savings.