Green card and PR card

[Home_I_will_be]

2013
I am Canadian, I moved to USA to marry an American.
I have a green card, expires 2027.
2019
We are moving to Canada to live and retire.
My husband will have a PR card.
What happens to my green card? I no longer will live in the US. But I will be crossing the border sometimes.
Do we just go from crossing the border with our passports and my greencard, to showing our passports and his PR card? Or am I in their computer as a American PR now, and he will be in their computer as a Canadian PR than, and that will raise some flags?
Some people say to keep the greencard even when moving back to Canada. I don’t understand how it helps. At the border they ask where we live. We will be saying Canada. We might still go shopping in the USA once in awhile. But....My husband will be working in the USA still.
Any help on this subject, thanks

 

[scylla]

2013
I am Canadian, I moved to USA to marry an American.
I have a green card, expires 2027.
2019
We are moving to Canada to live and retire.
My husband will have a PR card.
What happens to my green card? I no longer will live in the US. But I will be crossing the border sometimes.
Do we just go from crossing the border with our passports and my greencard, to showing our passports and his PR card? Or am I in their computer as a American PR now, and he will be in their computer as a Canadian PR than, and that will raise some flags?
Some people say to keep the greencard even when moving back to Canada. I don’t understand how it helps. At the border they ask where we live. We will be saying Canada. We might still go shopping in the USA once in awhile. But....My husband will be working in the USA still.
Any help on this subject, thanks

You'll end up losing your green card status after about a year. The US requires you to be living in the US to keep your green card status.

 

[Home_I_will_be]

You'll end up losing your green card status after about a year. The US requires you to be living in the US to keep your green card status.

Thanks
I figured that, but wondered how they know I’m not living there anymore.
And, I wondered if we pull up to the border and hand them our passports and my husbands PR card. And they go..... wait a minute, weren’t you here last month and you had a greencard, which means you live in the US, not Canada??