The United States State Department has a warning on their website against signing any contract in Mexico without getting proper legal advice. The reason is there are so many problems that Americans are having from getting duped into sales and there is nothing the State Department can do to help get the money back.
Amereicans con Americans in America. Americans who move to Mexico also con Americans. Just because they are Americans, don't trust them. Consider the sources of your information. Google any one or company with the words complaints, or problems and read objective research. Don't believe the pr new stories either.
Best advice, rent in an area for at least six months before buying. Try it on. Don't get sucked in by hype.
This woman and her business are not to be trusted.
She deals with Real Del Mar and Jose Corona, they are documented problems.