Personally, I would contact the landlord/realtor and have him come over and take a whiff. Either the carpet needs to be cleaned by professionals that specialize in getting rid of pet odors or the carpet needs to be removed/replaced.

If I were in your situation, first I would call the landlord and have him/her deal with it.

If I owned the house, I would start by getting a black light and using it to see where on the carpeting the dog has urinated. I would also check the corners of the room to see if the dog has been spraying on the walls. You can buy them at Petsmart and Petco.

Then I would get a gallon of an enzyme cleaner and apply it heavily onto the rug using a $15 hand pump sprayer Not just a light spray, but to the point of soaking so that it reaches the padding. Then you let it dry - no rinsing. I have always used Nature's Miracle, but there are other brands that people say are better.

In the end, new padding and carpet may be necessary. If you go that route, after the padding is removed, apply a sealer to the wood flooring, as the urine may have soaked through.

The only way you'll get rid of that smell is to lift the carpet and seal the flooring underneath. If the dog raised its' leg then you'll have the smell behind basboards and in walls as well. Definitely call the landlord and hopefully he'll use their deposit to take care of this problem for you.

I would ask the land lord to get new carpets, period. If it smells that bad, the urine must be down in the padding. Soaking a carpet is the worst thing you can do.. you will end up with mold if it's soaked down into the padding making it smell worse. Why subject your self to this, ..I would just stand my ground and insist on new carpets..he is making enough money and having other people pay for is real estate... he can afford to do this I am sure... good luck, let us know the out come.