Originally Posted by
NewbieRunner
Yes, according to LH.com's
lounge access rules. A passenger with a same-day First Class boarding pass may invite one companion plus spouse/partner, and children under the age of 18. Guests must produce a valid, same-day boarding pass for a Lufthansa/STAR Alliance flight and
leave the lounge with the person who invited them in.
The MUC FCL is on two floors with entrances/exits on two levels. It's neither Schengen nor non-Schengen with its own passport control within the lounge. You are both departing to non-Schengen destinations, but you are arriving from Schengen while your mother is arriving from non-Schengen. It will probably be best if you go up to Level H (non-Schengen) and meet your mother outside the FCL near gate H21.
Depends on her passport. If she doesn't require a visa to enter Schengen there shouldn't be any problem.
There's actually
Airbräu Next to Heaven on Level H (also called Level 5) airside. I've never been there myself but it might be a good compromise.
Both US passports, so no problem. Thanks very much, this is super helpful.