Meeting of the Boyfriend

My daughter is almost 29, lives here in San Antonio (not with us) and is unmarried. She's always been a private person, we've only met a few of the guys she's dated since high school. She's been seeing a fella for a few short months here and she wants us to meet him/he wants to meet us.
Hmmmmmm, what does this mean?
I'm thinking it means that one or both of them is wanting to take this relationship to the next level.

The meeting is happening today at 11:00am for an early lunch.

My husband woke me up much too early this morning fretting about this meeting, worried about what this meeting means - if you knew my daughter you would understand how strange her making these arrangements is.

We know his name, we know his age (7 years our daughter's senior), we know where he hails from, we know the generalities of what he does for a living (he's successful), we know he's divorced (no children), we know they met at the gym, we know how tall he is.
What else do we want to know, what kind of probing questions can we ask without our very private daughter taking offense and getting pissed off?

I have a mental list of questions that would exhaust even a professional speaker but this isn't a professional speaker, this is my grown daughter's boyfriend - what kind of questions can I get away with?

Of course I'll report back on the meeting this afternoon with a post edit :).

We're back home from meeting the boyfriend.
They are custom made for one another and a great match (or so it seems at this stage).
We were worried that they wanted to meet up with us to tell us they were going to get married or something, not happening, not now at least.
We liked him very much. Like our daughter, he's military (she was in for 5 years and he's still in but a reservist), they were/are both MSC Officers. He referees college basketball on the side but is a manager for a medical sales company (our daughter is in medical device sales). He's tall, athletic build, handsome, and of course of latin decent, she only likes men with a latin flair.
He's a Republican, she's Non-Partisan but calls herself a Democrat. She likes to try new things, he likes things set in stone, they are helping one another appreciate the other's preferences.

I think this man is a keeper. For now I think she believes the same thing, I hope this relationship is good for both of them but only time will tell.
Sorry, no photos yet, thought it might scare the bejesus out of him if I whipped out a camera and starting shooting photos, I was prepared to tell him it was a precaution if anything happened to our daughter while she was with him.