good question. why would you move here on just a whim with a 2 yo in tow?

if your income is derived from internet work-you won't require a mexican work visa. having said that, an fm3[rentista] visa is a retirement instrument so check with the mexican embassy or consulate in your home country to determine what is required. mexico is not just beaches and there are many inland areas that may suit you. sounds like you haven't done enough research to consider relocation to here. if your husband doesn't work on the net-it's probable that he will be a stay at home dad as it's highly unlikely that he will find "legal" employment here.