A lender would likely approve you up to $149,020
On $56,000 of gross income with $550 of existing monthly debt, the 28/36 rule supports about $1,130 a month toward housing. With $25,000 down at 6.65%, that reaches roughly $149,020 — a $124,020 loan at 16.8% down. Your resulting debt-to-income ratio would be 36%, and you are currently limited by the total debt.