It's been brought to my attention that if I couldn't find an address to send notice of my petition, and I still had a way of contacting the paternal donor but didn't mention it before finding an alternate route to gain custody, that he could claim I didn't try all that's within my power to get the information I need.
I know that's a long scenario. If I think about it in terms of a divorce, you can live with a person and think everything is fine, then suddenly you have divorce papers on the table and the spouse is gone.
I didn't think continuing contact could mean that I'm obligated to state my intention. I've done my part by asking for his location, workplace, address, etcetera. Is that not enough? Do I need to tell him somehow that I'm sending papers once I find him, because he would know regardless once they got to him.
In order for an adoption to occur, because you know who the biological father is, he has to be notified that you are petitioning to terminate his parental rights, pursuant a step-parent adoption.
Your current lawyer understands that Dad has to be served. However, if service can't be done in person, there is (almost always) alternative forms of service. The rules of service vary, so look up specifics to your state.
Here are some of the possibilities:
1) Dad could voluntarily agree to terminate parental rights. (<-- Option your current lawyer understands. Dad might just understand it as getting out of having to worry about child support.)
2) Dad can respond and effectively say, "Hell no! This kid is mine!" (<-- Option your current lawyer understands. Dad might have a renewed interest and suddenly petition for visitation.)
3) Dad is legally served (<-- not necessarily in person) and does not respond, does not show up to court. (<-- Option your current lawyer does not seem to understand. Judge can enter a default judgement.)
If Dad voluntarily signs away parental rights, or loses them in a default judgement, it is possible he may try to reassert his parental rights. However, there is a limited legal window in which he can do this.
You desperately need an adoption attorney, which is somewhat different from Family Law.