What if I don't "buy it right"?

[Altwon Simmons]

Hello brothers and sisters of BiggerPockets👋🏾. I have a situation I'd like some help with. I sent my very 1st letters out and my mothers neighbor (a duplex owner) is welling to sell. The problem is that his asking price is market value😔. I ran all the numbers with the BiggerPockets calculator and it still cash flow a few hundred dollars a month and it makes me feel like it's a great deal but if I'm not "buying it right" I'm I setting myself up for a terrible situation?? Here some information on the deal. Grade of the area.... C- Asking price... 75k Square feet....2000 (each unit is 2bed 1bath) City..... Buffalo NY Rent-o-meter........ $1500 ($750 per unit) Home condition.... C (will need a roof within 5-7 yrs) Does these numbers say RUN or should I be trying to close this deal asap? HELP ME BP FAMILY!🙏🏾