Mexico does not have many rules for drones under 2kg. Above this weight, you need to register your UAV. One more thing you should notice is CUSTOM. if you unlucky, can be charged 30% tax/VAT based on your drone’s retail price.
Maximum height your drone can fly is 122 meters (400ft)
< 2kg / 4.4lbs = no permission required
2 – 25kg / 4.4 – 55lbs = permission required
> 25kg / 55lbs = permission + pilot license required