I have visa stamped for PR in USA.but I have to enter before next month to get my green card.?

Posted July 5th, 2011 by immigratecanada and filed in Immigration to Canada

Currently I will travel to canada for my personal work and I hope to come USA from canada.Can I fill my documents related to greencard and apply for reentry permit on the same day ?should I need to follow the immigration service provider?send me the details.