I lost pretty much all my savings and stocks from the scam.  

@Haiden WelchReal estate investing requires hands-on experience and a strong foundation in financial markets, business management, and real estate principles.

This is why I emphasize education of real estate principles, law and finance are essential for the real estate investor.  

Borrowed on margin against their stock investments10.

Selling to yourself from your LLC to your IRA would be considered "self dealing" in that it isn't an arms length transaction since you are a principle/owner on both sides of the transaction. 2.

If you want to figure out the value logically, you can create a spreadsheet that will show your cost of financing and principle paydown on an annual basis to figure out the break-even date between the seller-financing price vs paying market price, but with bank financing.You mentioned a 40-year term, but is there a balloon?

Same principle 

They know their rate.The stock forms from my CPA include a tax comparison page that makes it easy to calculate the effective tax rate and compare line items year over year.

They would receive equivalent money plus an interest rate better than a savings account (plus less volatility if they wanted to put $$ into stock market).   

Anyone know if paying 1 huge principle payment at the end of each year would pay it off faster verses bi weekly payments?