I get 2 free tickets in every MLife offer for at least the past year. Just excludes O and MJ and any headliner.
As everyone else has mentioned, 2-ticket rewards are no longer a thing. However, if you and your companion each book a single ticket separately using your own accounts, the reservation hotline will happily make sure you're seated together-- just mention it when you call to redeem the reward.
40K in LP isn't that hard to collect. If you have more than 30 days it's possible to earn another show ticket with another account.
I was lucky to get one last June, right before they did away with it. I haven't seen it pop up since.
Once upon a time I didn't believe that, but over the last year I know for a fact it can be done and then some. I actually made my SO get somewhat serious again as we want to have 2 tickets to a show. She was at less than 4K a few months ago and maybe level 10 on FB (I don't remember her other levels), and helping her through the Blackjack app and FB she's at 112k LPs and level 45. Also, I'm at level 125 and have earned about 300K since May. So yes, getting 40K, and then some is definitely doable. Good luck!