Deal with reputable translation companies by: Clint
All good points. I've never done any paid interpreting, but I can imagine how if you deal with less than reputable companies, it would be easier to get burned and not get paid when the interpretation job is completed.
That brings up a point that I hope new translators and interpreters understand, and that is the importance of dealing with good companies and individuals. In an effort to try and get any kind of business, many translators and interpreters will take whatever job comes there way without at least checking out the company on Google or anything. Yes, there are times when you have to go on your gut feeling about whether to take a job or not, but you should make sure you do as much homework as you can at the beginning.