I have dated all walks of TBM women TBM women are closet freaks. Given the fact that doctors, esp surgeons, have a very busy life in US, it seems logical. The hardest thing is the feeling of being completely shut out. Props to your sister. Too often, I think, priesthood holders think that being overly controlling, they are simply wielding their authority in the home.
You will be able to best gauge where her beliefs stand in regards to the church if you listen to how she describes her mission. But daytime game is the key. At least people of different races are aware of those differences, and are on alert to deal with them. And unless they are total cretins your ward members will love him too.
If your relationship has gotten very serious, your girlfriend will probably try to find agreement in your faiths. If your spouse believes in infant baptism, will you allow the children to have that. He is married to his job right now.
Oh this is a great set of questions. Fortunately most of my immediate family has done better. Life will chuck all sorts of bouncers at you. Do you work Easter, the day after your baby is born, weekends, nights. There are so many potential problems they would fill a book. I love how this applies to ALL marriages. You will be surrounded by single women, many of whom are probably interested in dating and marrying a Mormon, so take advantage. Well, you won't be getting into anything soon. YOu ladies out there My soon to be fiance is a doctor, he'll be ending his internship in and maybe will do his postgraduate abroad.