When hiring an attorney to handle an immigration based mandamus lawsuit, it is essential to ensure that they have experience in federal litigation, as this is a distinct skill from advising on immigration applications, petitions and agency practice. Mistakes can be costly and are avoidable if the person filing the complaint has extensive experience in federal litigation. It is important to remember that not all immigration lawyers have the same expertise, so consider this when making your decision. Price is important, but experience matters just as much, if not more.