Duplex deal

[Kevin Lovill]

I found a duplex in my area. The LP is 109,000 REO, rent support in that area is between 650-700 per unit. Each unit has 2 beds and 1 1/2 baths. Duplex is in good condition. 2 stories with large kitchens and living rooms. My only concern is applying the 50 % rule with the max. rent for both is 1400. The mortgage on the property, if property could be bought 90-95k mortgage payments would be in the 700's. Any idea's from anyone. In the 50% rule whats all included taxes, vacancy, repairs and what. Never owned a rental property before and need advise.