Filing is kind of a final last resort technique and should only be done if you are serious about ending the marriage.
One thing to let you know about, is that in Washington county, you will be required to attend parenting classes ("Kids Turn"). Not sure about the requirements for your wife since she is only going to have visitation custody. Here is the information...
My XW and I attended at the same time, but they split all spouses into different rooms. We also had our kids attend their own classes, but that is optional.
