My question involves adoption law for the State of: Washington
I have limit funds to support consulting a lawyer and going to court, so can this be avoiding in the following circumstances?

The legal mother and I aren't married, but I've supported and fathered the child for the last 3-years. The biological father stills owes 3-years of child support and has made no contact with his son in over 3-years.
We are unable to locate the biological father.
The child is almost 4-years old.

I would like to become the legal custodial father of this child.

Many regards,

--tj