We are new to adoption,
I would check to see how Polish law concerns this. It may or may not have been updated in recent years. You want to make sure that there are no difficulties before you proceed.
Check the other threads on polishforums. There is some good info in there somewhere.
You might find an adoption agency in Poland who can act on your behalf.
Approach the Polish Embassy and ask them. They might have a list of trusted agencies.