A tale from the front:
A few years ago a colleague of mine had this incident in her parish. She had a baptized Christian in her RCIA group. He was divorced from his wife but had not remarried. The pastor insisted he needed an annulment. No matter that the chancery said that an annulment was not required in this case. At least not unless or until he wanted to remarry.
But the pastor’s word is law, on a local level. The insistence on annulment stood, and the man left RCIA, never to return. What would you do?