I don't know of any rescues, but I can offer some advice. I've never personally dealt with behavior problems this bad, but they can be corrected.
Until your friend can find someone to take the dog I recommend getting a dog crate to keep the dog in while she is out of the house and a steam clean with professional strength cleaning solution. It is extremely important that the smell is removed or the dog will continue to go on the carpets. She might be able to get him to go outside if she crates him and takes him out as soon as she gets home.
To me the dog sounds like it is dealing with some insecurity issues in the only way it knows how. I am not qualified enough to tell you how to correct the his behavior, but I hope you can find a shelter/rescue willing to take in the dog. You might want to look for an animal sanctuary because with the biting and food aggression there are very few rescues that will take him. Most dogs that bite hard enough to draw blood are usually put down by the city if it gets reported.
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