I'm a greencard holder. My company is sending me back to my home country, China, to work a short time, less than 6 month. The company attorney said there is no need to contact the INS since I'll work less than 183 days and I have green card. My concern is that the job may extent longer than that and I'll be in trouble, even lose my resident status in the worse case. The lawyer said I can come back to visit during the time I work there, so the record will show I'm not staying over 6 months each time I'm outside U.S. Will this work? Anyone has similar experience or knowledge on this, your advice will be greatly appreciated.