ahhh, but i repeat myself
OP, google is your friend, ok?
go to google and input something like "tier II sex offender statutes WA state", or some such verbiage and review what you find. This will give you some idea of what Tier II offenders are allowed.
You can branch off from there into WA custody laws and see what restrictions might be imposed on registered sex offenders when it comes to visitation.
or, obviously, you can reverse the order of the search...
the reality is that there is information out there that both you and your significant other can dig up yourselves, and then come back with more succinct questions.
you can try deltabravo.net as well.
don't get stuck relying on the input of others, lean and know the law yourself.