§ 1258.210.Demand to Exchange Lists of Expert Witnesses and Statement of Valuation Data

Article 2 runs on a demand system rather than an automatic deadline. Any party can start the clock by filing and serving, within 10 days after the trial date is selected, a demand that the parties exchange their lists of expert witnesses and statements of valuation data. Miss that early window, and a party still isn't shut out -- the court can allow a later demand on noticed motion and a showing of good cause.

The demand itself has two required components. It must describe the property involved, which can be done by reference to the complaint, and it must include a specific statutory warning telling the recipient what happens if it doesn't comply: waiver of the right to call unlisted expert witnesses during its case in chief, and waiver of the right to introduce, on direct examination in its case in chief, any matter that should have been in its statement of valuation data but wasn't.

That warning isn't decoration. It's the same consequence spelled out in detail later, in § 1258.280, so a party served with a demand knows exactly what's riding on the exchange described in §§ 1258.220 through 1258.260.