Arkansas. Married 22 years, 2 kids, 14 and 18. I make $80K, she makes $30k.

I'm done for a variety of reasons that are too long to go into here, but there's no infidelity or abuse. We get along but we're roommates at this point.

Not yet filed. I'll be pushing for mediation. Anyone been through this in Arkansas? What groundwork should I be laying before filing?