Yes, I suggest you end your contract. Online gambling is not legal in the US. You may want to read the article at Forbes Magazine on the US Government crackdown on illegal gambling web sites
http://www.forbes.com/global/2002/0916/020.html
You don't want to be the next Calvin Ayre of Bodog Nation, who was named as one of Forbes' richest man in the world (even made in the cover of the magazine's richest man edition) due to his online gambling operations
http://www.forbes.com/free_forbes/2006/0327/112.html . But even while he is based in Costa Rica, US federal agents raided him. This is the video feed at Forbes Magazine discussing the raid
http://www.forbes.com/video/?video_url= ... +A+Billion