I have tried googling quite a bit, I just can't find the keywords to give me the info. You imply WA. state will have guidelines in place already. Boy would I like to get my hands on those.
In a few months I will begin to draw my social security, and the children's benefit will be large. I have a 5 yr old biological child who I have about 40% of the time and my ex-wife has him about 60% of the time and she is deemed in the state of WA as the primary parent in our divorce papers...