Information on the requirements ; proof of residency ; is on the Canadian Snowbird Ass. web site.
www.snowbirds.org
Things can get nasty at the border , for Canadian Fulltimers .
I still own S&B and carry my current city tax form and file the IRS 8840 every year for the past 13 and carry copies.
Border crossing issues is one of the reasons why, I still have my house and with 2020 developments , I consider myself very lucky.