Loan/Deal Structures With Partners

[Jeremy Vaughn]

In an article like this: https://www.biggerpockets.com/renewsblog/2014/03/1...

The author says "Let’s say you structured the deal such that the investors get 75% of the building and you gave yourself 25% for putting the whole thing together."

I'm assuming he is basing these numbers off of the investors putting up the whole $180,000 down payment?

How is the $420,000 mortgage typically structured? Is the loan made to the LLC and the LLC has a PPM that details what each investors percentage is?

Does anyone have an example of a LLC operating agreement or Private Placement Memorandum that I could use?

Who would I go to for help with the structure of the deal? Attorney/Lender?