Boettcher DTC Building Joint Venture (Boettcher), lessor, brought suit against leasing agents, Falcon Ventures and Harmon Wilfred (defendants), alleging a breach of fiduciary duties and tortious interference with contractual relations between Boettcher and one of its tenants. The trial court entered judgment on a jury verdict in defendants’ favor, and Boettcher appeals. We affirm.
Defendant Wilfred, a partner in the real estate brokerage firm of Falcon Ventures, contacted Boettcher on behalf of a client, Landmark Associates (Landmark), which *790 was interested in leasing office space in Boettcher’s building. Because Boettcher had an exclusive listing with another brokerage firm, Wilfred represented Boettcher in the transaction as a cooperating broker.
In January of 1983, Landmark executed a sixty-eight month lease with Boettcher, and Boettcher paid defendants a commission. Shortly thereafter, Landmark began negotiating with Boettcher for additional lease space. While these discussions were still under way, Landmark contacted Wilfred to inquire about the availability of lease space in other buildings. Wilfred was then under contract as a leasing agent for another commercial lessor, Financial Plaza.
In January of 1984, after Boettcher and Landmark failed to reach agreement on additional office space, Wilfred facilitated a lease between Landmark and Financial Plaza. Landmark thereafter vacated its premises at the Boettcher Building and defaulted on its lease agreement.
I.
Boettcher first contends that the trial court erred in instructing the jury concerning the scope of the fiduciary relationship between a real estate leasing agent and a lessor. Boettcher argues that defendants were under a continuing duty of loyalty to Boettcher during the term of the lease. We reject this contention.
When an agent is employed for the performance of a particular task, the agency terminates on the performance or completion of that task, absent an express or implied agreement to the contrary.
See Clinkenbeard v. Central Southwest Oil Corp.,
Here, Boettcher concedes that Wilfred functioned as a special agent and there is no contention that he misappropriated confidential information. Furthermore, there was no evidence that the parties agreed, expressly or impliedly, that Wilfred’s duties or fiduciary obligations would extend beyond his performance as a cooperating broker in the Landmark transaction. Accordingly, the agency relationship between the parties terminated upon the execution of the Landmark lease in January 1983, and there was no continuing duty of loyalty after that date.
Boettcher’s reliance on
McKinney v. Christmas,
II.
Boettcher next contends that the jury instructions pertaining to intentional interference with contract varied impermis-sibly from the instruction approved by our supreme court. We disagree.
Under C.R.C.P. 51.1, a trial court is required to modify jury instructions to reflect changes in the law. See
Federal Insurance Co. v. Public Service Co.,
We conclude, as did the trial court, that CJI-Civ. 2d 24:1 (1980) had not been revised to reflect the holdings in Memorial Gardens, Inc. and Trimble. Because the instructions given here correctly set forth both the elements of the tort and the factors to be considered in determining impropriety, the instructions correctly stated the prevailing law and there was no error.
III.
Boettcher next contends that the trial court erred in permitting a witness for the defense to testify as an expert in real estate law. We disagree.
The trial court has broad discretion in determining both the qualification of expert witnesses,
People v. Jiminez,
Here, we perceive no abuse of discretion. The record indicates that the witness was amply qualified as an expert on real estate law and standards of practice applicable to the profession. In addition, the trial court effectively controlled the scope of the examination and thereby ensured that the witness did not improperly testify concerning the ultimate issues of law before the court. Moreover, we agree with defendants that much of the expert’s testimony was an appropriate and permissible response to the opinions previously stated by Boettcher’s expert witness.
IV.
We disagree with Boettcher that the trial court erred in admitting into evidence certain correspondence between Landmark and Boettcher. The contested documents were properly admitted under CRE 803(3) to show Landmark’s intentions and state of mind.
See Morrison v. Bradley,
Judgment affirmed.
Notes
Sitting by assignment of the Chief Justice under provisions of the Colo. Const., art. VI, Sec. 5(3), and § 24-51-1105, C.R.S. (1987 Cum.Supp.).
