Washington Tortious Interference with Contract

Hoffer v State of Washington, 110 Wn.2d 415, 432, 428, 755 P.2d 781 (1988):

The elements of tortious interference with a contract or business relationship are as follows:

(1) existence of a valid contractual relationship or business expectancy; (2) knowledge of the relationship or expectancy by the alleged interfering party; (3) intentional interference inducing or causing breach or termination of the relationship or expectancy; and (4) resultant damage.

Sea-Pac Co. v. United Food & Comm’l Workers, Local 44, 103 Wn.2d 800, 805, 699 P.2d 217 (1985); Calbom v. Knudtzon, 65 Wn.2d 157, 162-63, 396 P.2d 148 (1964).