Have you tried working direct with a real estate broker/rental agency? If you can provide an additional months rent (or more) that will help for sure. Also, maybe an explanation letter of any troubles you encountered and why you had to file a chapter 13. Most people are looking at rentals to fill immediately, therefore, if you are looking to move some place in Feb, I would start looking end of Dec or beginning of January. They want to fill the vacancy as soon as possible, that may be part of the problem?