Welcome to America, dantm!
Legitimate immigrants have always been one of our nation's greatest strengths. I hope you prosper and do well, and set a good example for others.
In theory, if you have a green card, you should be good to go with everything but voting; in reality, you may encounter complications. I live in Colorado, and know not one, but two immigrants who not only own firearms, but have qualified for concealed carry permits.
Best of success dealing with Taxachusetts!
No tyrant should ever be allowed to die of natural causes.