Lien Filed in GA against our house past 90 days

[Connor Castillo]

Hi everyone, we had a GC just file a lien after 130 days from last work. She made up a date even though we have proof that we terminated her contract 130 days ago. She is frustrated that we went with another contractor and we actually over paid her compared to our contract. She later just trying to get us, so she slammed us with an 80K lien a WEEK before closing. 
Is there anything we can immediately do because last work was past 90 days?

thank you!