自己办
Follow the instruction in this form.
http://uscis.gov/graphics/formsfee/forms/i-539.htm
Once you file the application and receive the receipt notice, then you are OK to stay in US with your LP as far as her keep her status.
Follow the instruction in this form.
http://uscis.gov/graphics/formsfee/forms/i-539.htm
Once you file the application and receive the receipt notice, then you are OK to stay in US with your LP as far as her keep her status.