Becoming a US citizen is exciting and has many benefits, but the process of naturalization can be complicated. Start the process by consulting with a skilled citizenship lawyer in Addison. e help clients in the Addison area seeking to become U.S. citizens in understanding how the naturalization process works. Naturalization is the process by which one applies and is approved to become a U.S citizen, and that is assuming they are approved. Often, and to the surprise of many, applications for citizenship are routinely denied.