That's exactly what we did and with the co's blessing. He had told the elders of the new hall to use us to the fullest. Then the next pompous co came along, Birnie Geraux, and he told these elders to do what ever it takes to get us back to the old hall. Yet, my husband was being used as literature/book counter as well as territory for the last twelve years before we left. They still allowed us to pioneer and work at the bethel farm.
It will depend on your circuit overseer and how much you dump into their money pits. Why in the world would you want to put yourself through the agony of the gossip that will follow????
And yet the old hall had two elders who were living outside of their territory. And forty minutes away from us there were a congregation of Italians who had a few elders living outside of their territory as well as quite a few families. They had felt comfortable with one another since they were all Italians.
Rules are different in each hall, it seems. A bethel elder told us that they prefer you go to the hall your assigned to but there is no written in stone rule on that. I do know there is an article on it for I had dug it up years ago to give the co if we were given a hard time about it, which we were not.