Canadians who have purchased investment properties in the US, did you have any troubles at the border?

I’ve heard of snowbirds having to sell their US properties because a border guard decided to bar them from the United States.

I’d like to purchase a multifamily property and may or may not need to spend some time there renovating it before renting. I’m wondering what problems I could encounter at the border if I have to initially cross back and fourth.

Thank you!