Unless displaced by the provisions of this chapter, the principles of law and equity, including the law merchant and the law relating to principal and agent, estoppel, laches, fraud, misrepresentation, duress, coercion, mistake, insolvency, or other validating or invalidating cause, supplement its provisions.
RCW 19.40.902
Supplementary provisions.
Applied in 10 court decisions — leading case Freitag v. McGhie (1997)
Most recently applied in Lacey Marketplace Associates II, LLC v. United Farmers of Alberta Cooperative Ltd. (May 2015)
1987 c 444 s 10.
How often courts cite this section
Court decisions citing this, by year. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.