The location/ARV value of the property would make a big difference in whether this is a good buy or not.
ASSUMING, A mortgage payment of 502 for 30 years, at 3% interest assuming 1k/yr tax and 20% down with 7 years LEFT, the property was bought/refi at a 124K Valuation 23 yrs ago, leaving out insurance. http://mndne.ws/LKPUIR.
ASSUMING, A mortgage payment of 502 for 15 years at 3% interest assuming 1k.yr tax and 20% down with 7 years LEFT, the property was bought/refi at a 76K Valuation 8 Years ago, leaving out insurance. http://mndne.ws/V5D66N
Factoring in those 2 possible valuations, with the cashflow calculations that others have done. It is possible its a good deal. Did those neighborhoods appreciate in the (8 or 23) years?
You might need to do a value add or refinance to make the numbers work better. Have you plugged these into the biggerpockets caculator?
Some conclusions that can be drawn include
You are buying a non performing property at a discount.
You are buying a formerly overvalued property, that has lost value.
The CoCR(Cash on cash return) while poor might be justified due to the assets (current Value).