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I was deported from usa back in 2009, for fighting (felony) with my sister's boyfriend, my sister was 17years old.
Unfortunately I got deported from usa and few months later they found out she was been abused from this guy.
My sister got her U visa and now she is resident in usa, unfortunately I got deported before government find out the situation.
Now I decided to register to ilac (english school) in Canada and they sent me my admission letter and I showed to inmigracion at the airport and they authorize my entrance with out questions.
Do I was very lucky ? To entrance to the country.
Or if doesn't matter the status in usa
I would like to apply for a work permit in Canada but I'm afraid to be deported, do I have any chance to win this case.

I assume you entered Canada with visitor status. If you have a felony, there is a chance you are inadmissible to Canada and the only reason you were allowed in was because CBSA didn't know about the felony.

You don't qualify to work unless you hold a study permit and are taking a full time program that is at least six months long.
 
I was deported from usa back in 2009, for fighting (felony) with my sister's boyfriend, my sister was 17years old.
Unfortunately I got deported from usa and few months later they found out she was been abused from this guy.
My sister got her U visa and now she is resident in usa, unfortunately I got deported before government find out the situation.
Now I decided to register to ilac (english school) in Canada and they sent me my admission letter and I showed to inmigracion at the airport and they authorize my entrance with out questions.
Do I was very lucky ? To entrance to the country.
Or if doesn't matter the status in usa
I would like to apply for a work permit in Canada but I'm afraid to be deported, do I have any chance to win this case.

for PR you need to hire a lawyer to get clearance of that charge