Hi again, Tammy, and thanks for your reply.
Online information is constantly changing, as Mexico's requirements change, so my recommendation to call your local Mexican Embassy or Consulate would provide you with the most current information re: the necessary visas and other requirements you will need to move to/live in Mexico, entering as a U.S. citizen.
You can call the Mexican Embassy in Washington D.C. at(NNN) NNN-NNNN or, if you would like to provide me with your location, I can research the Embassy or Consulate nearest you.
I've found some additional basic information for you, which should be helpful, but I don't know how recent it is. To reside in Mexico, you will need to apply for an FM3 visa.You can apply for this in person at a Mexican Consulate. You also must have proof of at least $1000-$1200.00 a month, steady income, from working in the U.S; this could include a pension, or proof of at least one year's worth of money in a bank account. This visa must be renewed every year and proof of income is required. After 5 years, you may apply for an FM2 visa (similar to a green card in the U.S.) After 2 more years, you may apply for citizenship, if you're interested in doing this, which takes at least 2 years to process.
People who cannot provide proof of income often go to Mexico on a 180 day tourist card, and leave every 6 months for a day or so, then re-enter on another tourist card. You cannot
work in Mexico without an FM3 visa and a work permit, which may not be easy to get. You must find an employer who will write a letter to immigration and state that s/he is giving you a job for which s/he cannot find a Mexican citizen. After that, your work permit is tied to that specific job. Unemployment is high in Mexico, so if you do not enter with a job already in place, they try to discourage you, because they don't want any more unemployed people. http://www.mexonline.com/visa.htmhttp://www.mexonline.com/business/visa2.htm
Edited by Cher on 11/16/2009 at 11:27 PM EST