There are various types of complex commercial litigation matters. The first would involve contract disputes between shareholders or owners of a business. You would typically have a shareholder’s agreement, confidentiality agreement or employment agreement, and you could have disputes regarding those agreements.
The second type of dispute you may have is a business tort case, where you would have claims for breach of fiduciary duty or tortious interference. In addition, you may have shareholder inspection cases or causes of action, and you may also have cases where shareholders want to bring derivative actions against a corporation.