should I be paying out of pocket monthly just to cover mortgage?

[Deven Wolfe]

I am looking at a duplex with a monthly mortgage higher than the rent being received. One tenant has a lease until next July, and the owner wants a 6 month lease after selling with a set price, and none of that is including the utilities. My Real estate agent told me that its normal for an investor to pay out of pocket to operate an investment property. To me that sounds upside down, thoughts?