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Is it worth trying to find a better minimum down payment for a first time home buyer?
If you are putting down less than 20% expect to need to pay PMI.  When you first applied they should have described you a group of options ranging from minimal to 20% down. The monthly amounts would have varied based on PMI, down payment, and interest rate. The maximum monthly payment for principal, interest, taxes, and insurance will determine the maximum loan you can get. The down payment determines the price of the house above the mortgage amount.  During the most recent real estate bubble, lenders created exotic mortgage options to cover buyers who didn't have cash for a down-payment; or not enough income for the principal and interest, or ways to sidestep PMI. Many of these options have disappeared or are harder to get. You need to go back to the bank and get more information on your different options, or find a lender broker who will help you.