delivered the opinion of the Court.
We granted certiorari to review a decision of the Court of Appeals
[Cordillera Corporation v. Heard,
. The landlord, petitioner Cordillera Corporation, filed a complaint in Denver District Court on November 24, 1976 for damages from breach of a lease agreement between Cordillera and the tenant, respondent John W. Heard. The lease agreement was incorporated into the complaint. On December 15, 1976, the respondent entered a general denial which included affirmative defenses. 1
On appeal, the Court of Appeals held that an arbitration clause could be waived:
“A valid and unwaived arbitration clause deprives the court of jurisdiction until the dispute has been submitted to arbitration. See Guthrie v. Barda,188 Colo. 124 ,533 P.2d 487 (1975); Zahn v. District Court,169 Colo. 405 ,457 P.2d 387 (1969). Here, however, the issue is whether, as contended by defendant, the arbitration clause has been waived. See Thomas Wells & Associates v. Cardinal Properties, Inc.,192 Colo. 197 ,557 P.2d 396 (1976).
“Although the public policy of this state favors arbitration and, conversely, waivers of arbitration are disfavored, Dominion Insurance Co. v. Hart,178 Colo. 451 ,498 P.2d 1138 (1972), the right to arbitrate ‘may be waived like any other contractual right.’ School District No. Six v. Alfred Watts Grant & Associates,156 Colo. 328 ,399 P.2d 101 (1965). To be valid, the waiver must be a voluntary relinquishment of a known right. People ex rel. Metzger v. Watrous,121 Colo. 282 ,215 P.2d 344 (1950); French v. Patriotic Insurance Co.,107 Colo. 275 ,111 P.2d 893 (1941).” Cordillera Corporation v. Heard,41 Colo. App. at 539 ,592 P.2d at 13 .
In order to hold that the facts here establish waiver, the Court of Appeals reasoned that the petitioner’s complaint was an offer to modify the contract, which the respondent accepted by filing an answer. Thus, the arbitration provision of the contract was waived, and the district court could assert jurisdiction.
One of the cases relied upon by the Court of Appeals,
Titan Enterprises, Inc.
v.
Armo Construction, Inc.,
The federal cases cited in
Doers
suggest that the federal courts follow a slightly different analysis to determine when an arbitration clause has been waived by the parties.
See, Merrill Lynch, Pierce, Fenner & Smith
v.
Lecopulos,
The second test is used to determine if there has been a waiver of an arbitration clause by a defendant who originally asserted the right to arbitration as an affirmative defense in his answer. Because the defendant does not have the choice of forum, his exercise, of the arbitration right may be delayed somewhat so long as his delay and the proceeding on the merits do not prejudice other parties. Demsey & Associates, supra, and Carcich, supra.
We look to the federal precedent for the rationale of requiring a trial court to make a factual determination that inconsistent actions of the parties when they pursue litigation manifest the intent of the parties to waive an arbitration clause. An arbitration clause may be waived by actions taken in litigation which are not consistent with an arbitration clause. 3 Here, actions of the petitioner and the respondent were sufficient to waive the mandatory arbitration clause.
Judgment affirmed.
JUSTICE LEE does not participate.
Notes
None of the defenses related to the arbitration provision in the lease agreement.
Some federal cases use prejudice to other parties to determine whether the plaintiffs actions are inconsistent with the arbitration clause.
See Carolina Throwing Co.
v.
S & E Novelty Corp.,
Our opinion in
Thomas Wells and Associates v. Cardinal Properties, Inc.,
