Help about Green Card Please? Jesse,Umesh,Mohan and others PLEASE????

can any body help me that my mother has a green card and she want to go back home and wanna stay there for 18 months. Will she have a problem when she come back or what she can do ? Any suggestions what to do please?
Thanks
Buna

can any body help me that my mother has a green card and she want to go back home and wanna stay there for 18 months. Will she have a problem when she come back or what she can do ? Any suggestions what to do please?
Thanks
Buna

Hi, she can travel outside the U.S. for that long, but before she leaves the U.S., make sure she gets the reentry permit. Apply for a reentry permit to your service center on form I-131.