Ariana's lawyer, Laura Wasser, filed first Monday ... citing the boilerplate "irreconcilable differences" as the reason for divorce.
Dalton immediately followed suit, filing his response in a clearly-coordinated effort. We're told everything was worked out before going to the courthouse. Sources say Ariana will cut Dalton a check, and that will be that.
BTW ... they had a prenup. The date of separation is February 20, 2023.
As for why it took so long between the date of separation and the divorce filings, a source with direct knowledge tells us the two took their time to iron out details and settle. Our source says there are no hard feelings ..."they’ve been really caring and respectful of one another every step of this process."