Emergency loans

Ok I’m not going to make my next lease payment later to day and I remember hearing about an Emergency loans, how do I get one of thoses?

If it is just for a lease payment, I don't think you can get one.  If it is for the week end closing payment, the game will give you one automatically when the payment is due if you do not have funds.  You can only get the loan a couple of times, and it comes at a very high interest rate.