Seasoning borrowed money

[Frank Leone]

Hey guys just some quick questions. I am looking to buy my first duplex which I will rent out one unit and live in the other. I will be going for an FHA loan 3.5% down. #1 - What I'm wondering is if I were to borrow money from a friend how would I be able to get a mortgage without the bank knowing that I have borrowed the money? #2 - If I borrowed the money and had it deposited into my account how long would it need to sit there for the bank to say it's my money and not question where it came from? For all they know it's just mattress money. Thanks