Other factors relevant to determining fair value in a given situation may be the factors referred to in Rule 1.5(a), as well as the circumstances of the dismissal or withdrawal, the extent of the legal work required to complete the case after the termination or withdrawal, and contingency fees; to which the lawyer would be entitled to the entry of the case. Unless otherwise agreed in writing, the lawyer is not normally entitled to a fee unless the case has occurred. Nothing as a general rule should justify a presumption that a lawyer is entitled to a Quantum Meruit Award if the representation ends before the eventuality occurs. . . .