Job Recruitment Website - Ranking of immigration countries - Don't Singapore immigrants have immigration directors?

Don't Singapore immigrants have immigration directors?

There is no immigration supervisor in Singapore, so you can stay anywhere you want and keep your green card in Singapore.

Whether you can stay in the United States for a long time depends on whether you have legal documents (long-term visa or green card) to stay in the United States for a long time. If you do, there will be no problem.