Denver and Colorado has large populations of foreign workers that find employment in many fields,with the work there are many that find themselves in trouble with immigration issues, and as we have said many times in many other places on the Cheap Lawyers website your best bet for a good result is dealing with the immigration issues while you are still in the USA, once you leave the US and you have outstanding immigrations issues the likelihood that you will be able to get back into the US legally is very hard to almost impossible.
Many Law firms in Denver do Pro Bono work but most of them volunteer their services to specific organizations so if you are facing legal issues concerning your right to stay in the US that you contact the Denver based originations below.