I got a bachelor degree in law in Korea five years ago.....
After I graduate, I went to Army service for two years
As soon as I was done the Army service, I came to the U.S. right away.
Now, I studied general English, accounting, economics in community college for almost 2years.
So, I dont have any close law professors, and I dont have much time to go back to Korea.
That means If I want to receive letter from law professors, I should touch them by e-mail, or phone and I should send letters by mail and receive them by mail. It is quite annoying. Also, there is no time to do that...
Here is my question:
Could I receive letter of recommendation from college teacher or professor that I am taking now?
As you know, there is no law professor in the U.S undergraduate.
I should ask professor that teaches accounting or economic..etc

Is that possible? Or not allowed? Is it critical?

P.S I dont have work experiences except 2 years army. 

any thought?? :(