I am not an expert on house training. But I do believe different brand of food might help with the smelly poop problem. Chloe was on Canidae dry food and she was doing great on it. Of coz she still poop a lot until I switched her to Nature Variety RAW food and I do notice her poop MUCH MUCH MUCH less!!!
Good luck!!! I am sure someone on here can give you better advise....