My client had a law firm do their ERC 941X and paid them $81,000 to do it. 

What I find odd is they did not do it for Q3 2020 or Q4 2021

What was filed was Q1 2020 Q2 2020 AND Q4 2020

Q1 2021 Q2 2021 AND Q3 2021 

Is it too late to file for Q3 2020 ERC? Was Q4 2021 and eligible date?