Business judgment rule

What the rule protects

Boards make judgment calls constantly: which roofer to hire, whether to repave now or in two years, how to spend a limited reserve. If every one of those calls could be relitigated in court whenever the outcome disappointed someone, no volunteer would serve. The business judgment rule exists to stop that: a court defers to the board's decision instead of asking whether the board picked the best option.

"Where a duly constituted community association board, upon reasonable investigation, in good faith and with regard for the best interests of the community association and its members, exercises discretion within the scope of its authority under relevant statutes, covenants and restrictions to select among means for discharging an obligation to maintain and repair a development's common areas, courts should defer to the board's authority and presumed expertise."

Source: Lamden v. La Jolla Shores Clubdominium Homeowners Assn., 21 Cal.4th 249 (1999), California Supreme Court

This is a different protection from the one that shields an individual director from personal liability for how they voted (see duty of care). Lamden's rule protects the board's decision itself from being reopened, not any one director's vote on it.

Four ways the shield breaks

The rule is not a blanket pass for anything decided in good faith. It fails to apply, and the decision goes back to being reviewable, in four situations: the board acted with fraud or self-dealing; the decision was ultra vires, meaning it exceeded the board's own authority or violated the governing documents; the board never adequately informed itself before deciding; or the decision arbitrarily singled out one owner or group for different treatment.

"...does not protect directors who engage in fraud, self-dealing, unconscionability, and similar conduct."

Source: Karen Safran and Miro Kovacevic, "The Business Judgment Rule and Common Interest Communities", Colorado Lawyer, Colorado Bar Association

Good faith alone is not enough. A board that skipped the homework, acted outside what its declaration allows, or treated one owner worse than everyone else gets no deference, no matter how well it meant.

This is California case law; check your state

Lamden is a decision of the California Supreme Court. It does not bind courts outside California, though it is the most frequently cited HOA business-judgment case nationally, and practitioners elsewhere cite it as persuasive authority.

Other states apply their own version of this deference doctrine, under a different name and a different exact test. New York courts apply a comparable standard from a cooperative-board case, and Arizona and Illinois courts have applied similar reasoning in their own community-association cases. Ask a local attorney what your state's doctrine is called and what it actually requires before assuming Lamden's test applies to you.