How do you get cash back after you buy a property?

Can you all explain as much as possible about that to me? Isnt it pulling out the equity or is that totally different because someone I know bought a home and got $50,000 cash back.|||It can either be by pulling equity out, or by borrowing more than the value of the home. There are also some fraudulent ways to do it, like jacking up the appraisal, and having the seller give you a kickback, but you don't want to do that.|||Why not buy real estate, and sell it again double the price.