Want to start a private fund with close acquaintances

[Irving Santos]

I would like your thoughts on how I should start a group fund to invest in real estate. I have this idea to save X amount money per week among 4 people. I need to know what I should open up (business checking account, LLC?) to make this happen. How would I write up an operation agreement that would list: no taking out money until amount goal is reached, how to divide earnings, who will control of operations and costs to maintain business etc.. Please I am new to this stuff and will appreciate every information you give me.