Besides the mortgage there are real estate taxes, water, fuel, home insurance,gardening and extras that happen such as plumbing where a water main, hot water heater, furnace need repair or replacement. In addition is roofing that needs upkeep.
Make sure that you are able to cover both expected and unexpected expenses. Boro Park is still expensive. Anything going for 5-6 hundred needs alot of work which adds to expenses too. Many people forced into forclosure went ahead and purchased homes thinking that the mortgage was the only expense. I fargin you with my whole heart and good luck.