if the Mexican government would allow them to own their own property and provide for their health needs.FYI, Gringos can buy property in Mexico (just not w/in 100km of the border or 50? km of the coast). Adequate health care is about $250/mo but ya gotta habla to communicate w/ the DR.
Their property purchase restrictions depend on who you are. A very well known singer had his "south of the border" beachside hacienda prominently featured on MTV Cribs. He owned the beachfront as far as the eye could see...