Originally Posted by quendin

Got it- my post got merged into this thread, but this thread is helpful.

From what I've gathered

1.) You can bring as many as guests as the lounge allows (i.e. not make it too full for their business class customers).
2.) Citi has a very narrow definition of "immediate family"- it's a spouse and children under 18
3.) Citi has the right to verify your extra guests were immediate family, but it is very unlikely they will charge or investigate you as long as you don't have a pattern going over the limit. (I actually couldn't find a single post online about someone ever being charged)

So while my spouse, sibling, and two parents are technically 1 over Citi's limit as defined by their policy, it is very unlikely I will be billed.

Originally Posted by moe8555

From personal experience, I have exceeded the two-guest limit via immediate family and have never been charged. I highly doubt there is truly a mechanism in place for the lounge to make the call concerning who exactly is family or not. It is most likely boilerplate language for Citi to reserve the right to investigate should a pattern of exaggerated guesting arise, as you speculated.