There are so many reasons behind anyone wanting to immigrate to the US. Some of the reasons are marriage, studies, job and migration. In all these cases it is must to get proper immigration advice to make things happen smooth. Without good advice, it will be a difficult and stressful experience for you to go through all the legal formalities. Each country has its own specific rules and requirements; you should make sure that you know about these things in advance. Do a little research about the immigration laws before you begin. Make sure that all your papers are up to date. It is better to make copies of whatever papers you are submitting in the immigration office.