Mortgage as a Professional Poker player

[BCM11]

Hey guys, just looking for some feedback/advice. I am 22 and have made a living off poker for 2 yaers. I had hardly any credit before this but have been building very good credit during this time and have two years of tax returns to show for income. My question is how big a % of money is needed for a downpayment on a home with this occupation and how much a problem it is. Do they even need a listed occupation or is a sizeable down payment with good credit all that matters? Anyone with any experience they can tell me would greatly be appreciated.