Fell for lawyer scam

As the title states. My mom recently "applied" for a green card through a "pro bono" lawyer that ended up being a scam.

The only reason we noticed was because they wanted us to come to atlanta for a "naturalization ceremony" but there is no such thing for those receiving permanent residency.

I feel really stupid because there were obvious red flags i brushed off so i understand where i went wrong. What i am looking for now is advice how to move forward with this

I have found a REAL immigration attorney but consultation isnt until the end of the month and the scammers are asking for money now (specifically 2k) i am mostly concerned about this because we have gone so deep into it that they have our address, tax info, names, ssn etc..

No shaming please we have already shamed ourselves enough.