Collect a Judgments
I know, many of you are say, "COLLECT A JUDGMENT?" YOU MUST BE KIDDING", but judgments are good, they have a life of 10 years, and they can be renewed for another 10 years if you can prove that you have attempted to collect. An added matter, is that they earn 10% interest. Therefore if you have some old judgments laying around get them out, dust them off, and try to find your old tenant. There are a number of web sites that can help you, especially if you got their social security number on their application. If you can't find the judgment, then go to the court and have them print a copy for you. Once you have them you can try to collect yourself, or you can send it to an attorney who specializes in collections, or to a collection agency, you will pay 40 to 50%, but hey, 50% of something is better than 100% of nothing.