Canadian with green card -- filing tax both countries?

[canadiangreencardholder]

Hello,

I am Canadian, and I got my green card in Feb 2014, and started working in the US end of April 2014 till Jan 2015. My questions are:

1) Do I need to file tax for both US and Canada?
2) For filing in the US, I will get W-2 from the places I worked with, to use for filling , correct? Do I also file my expenses while I have been in the US since Feb 2014 such as monthly rental, gasoline, leased car ?
3) For filing in Canada, can I use any tax online/software to file? Do I include my income and expenses in the US in my filing for CAnada?

Thank you in advance!

[nelsona]

Please read some of the 100's of posts regardling EMIGRANT return.