work in US on TN, how to file tax for rental property in Canada

[XR7777]

Hello,

I am working in US on TN. I keep my main residence in Canada and I also have a rental property in Canada.

Am I considered as a residence of Canada for tax purpose? Should I file income tax in both US and Canada? Should I submit the form T1161E and NR6 E:

https://www.canada.ca/en/revenue-agency ... t1161.html
https://www.canada.ca/en/revenue-agency ... s/nr6.html

Can I still contribute to RRSP?

Many Thanks!