Upvote:1
Residents of Canada, Mexico, or the Caribbean are treated differently with respect to the rules designed to circumvent visa runs to Canada, Mexico, or the Caribbean.
If you are admitted to the United States under the VWP, you may take a short trip to Canada, Mexico, or a nearby island and generally be readmitted to the United States under the VWP for the remainder of the original 90 days granted upon your initial arrival in the United States. Therefore, the length of time of your total stay, including the short trip, must be 90 days or less. See the CBP website. Citizens of VWP countries who reside in Mexico, Canada, or a nearby island are generally exempted from the requirement to show onward travel to another country when entering the United States. Learn more on the CBP website.
Source: https://travel.state.gov/content/visas/en/visit/visa-waiver-program.html
Most importantly, the rules concern travelers who take "short trips" to Canada, Mexico, or adjacent islands; you will not be such a traveler.