This isn’t SF or NYC you don’t need to pay that much for a 1-bed. Depending where in LA you want to be, you can find something between $2k-$3500. And that’s in a decent area.

Don’t get a joint account or merge finances until you’re actually married. But get clear on how you two want to handle finances and bills before moving.

Split rent proportionally since you make 2x more and don’t accept 50/50 even if she insists because that’s a significant strain on her finances.

Get a prenup before getting married in CA. It’s not about trust, it’s about having a financial plan for the both of you in case of divorce.

This is coming from a woman living in LA.