A litigation lawyer is a specialist who works primarily with clients who wish to litigate a case or defend against litigation started by another party. Lawyers sometimes work on a contingent fee basis, which means that if you do not win the case, you do not owe the lawyer any additional fee. However, many contingent fee agreements do require the plaintiff to cover some of the costs of the litigation. A litigation lawyer who represents defendants in a litigation usually expects to be paid hourly or in some cases on a flat fee basis with a retainer. A skilled litigation lawyer can be of tremendous value whether you are a plaintiff or a defendant in a litigation.