Originally Posted by
JoostvD
I understand the reason for not being specific here, however, the immigration service in which country he or she goes will probably want to see a document. If we don't know whether there is such a document or not, it makes it much more difficult to advise him or her.
True, but it's a side issue, and as we don't if the OP's relationship with their partner is formal or informal I think the way to address this side issue (if at all) should have been something like "If you are not legally married then some countries may require you to formalise your relationship before they give you permanent residence"