Is there a way I can save a Sage to move to a new game save?

Currently in my game save I am playing a vampire who is getting established. She has had a couple of separate relationships, and at the moment she is dating Morgyn Ember. Morgyn actually did the asking, if my sim wanted to date, and has progressed the relationship. I already know to keep their relationship connected I would have to at least get them engaged if I save them in my library to move them. Currently, they do not live together, and thus Morgyn is still a Sage.

My problem is I am noticing several sims are not there anymore, there were not any notifications given. When I used MCCC I found out that these sims are all dead. They did not die of old age, but rather something else had killed them. So now my town is getting filled up with new sims (badly dressed) that the game is creating. If I am able to move my sim to a new game save, I am for sure going to be turning off the death and moving part of the story progression.

My question is I know that in order for my sim to keep her relationship with Morgyn, I will have to move them in together. But this will remove Morgyn's status as a Sage. Is there any way I can save Morgyn and my sim to my library together, and then place them in a new game save while keeping Morgyn's status as a Sage intact?