However, don't worry. If the lawsuit reaches the court, does the judge know anything about finance and taxation? They hear cases more widely than lawyers.
If the company can find a qualified accountant or tax agent in finance, it can contact a specialized accounting firm and tax agent firm. They can provide corresponding suggestions and analysis from a technical point of view, and combined with the lawyer's legal knowledge and practical experience, it should be operational.
Just like a lawyer who specializes in medical disputes can't be more proficient in medicine than a doctor, but he can still operate.