Judge Mark Boessenecker

Judge Mark Boessenecker served on the Napa County Superior Court bench for 19 years, appointed by Governor Arnold Schwarzenegger in September 2007 and retiring in February 2026. He presided primarily over criminal matters throughout his tenure, and his docket also included significant civil and regulatory disputes. The available data documents his handling of the high-profile Hoopes Vineyard winery dispute (2024–2025), in which he applied regulatory and statutory law strictly in the context of land-use and county ordinance enforcement, issuing tentative rulings and ultimately imposing financial penalties against the winery that reached up to $4 million. That case drew regional and statewide media attention. In the Hoopes Vineyard matter, Judge Boessenecker demonstrated a pattern of strict adherence to regulatory frameworks and county ordinances, declining to afford the winery relief from the penalties Napa County sought to impose for wine tasting regulation violations. His approach in that case reflects a textualist orientation toward statutory and regulatory compliance rather than equitable balancing in favor of regulated parties. He also presided over a notable 2022 child molestation criminal case, consistent with his primary criminal docket assignment. Because Judge Boessenecker retired in February 2026, this profile is most relevant for attorneys reviewing his past rulings, handling matters he presided over that remain on appeal, or seeking to understand the judicial culture of the Napa County Superior Court bench during his tenure. The data available is limited to biographical and case-specific public records, and no attorney observation data or analyzed ruling transcripts are available to supplement this profile.

Attorneys who appeared before Judge Boessenecker in regulatory or land-use matters should understand that the documented record shows strict application of county ordinances and statutory frameworks. In the Hoopes Vineyard dispute, he did not rule in favor of the regulated party seeking relief from county enforcement, and penalties reached up to $4 million. Arguments grounded in the plain text of applicable regulations and county code — rather than equitable or policy-based arguments for leniency — were the framework within which he operated in that matter. For criminal matters, Judge Boessenecker's 19-year tenure on a primarily criminal docket means he accumulated substantial experience with criminal procedure, sentencing, and evidentiary issues. Attorneys handling criminal appeals or reviewing his past rulings should focus on the specific statutory and procedural bases he applied, as the available data indicates a judge who engaged closely with regulatory and statutory text. Because no attorney observation data or ruling transcripts are available, attorneys should supplement this profile by reviewing public court records and any published opinions or tentative rulings from the Hoopes Vineyard matter, which received significant media coverage and generated a documented public record of his reasoning in that regulatory enforcement context.

• critical

  Review Hoopes Vineyard Public Record

  The Hoopes Vineyard winery dispute (2024–2025) generated regional and statewide media coverage and produced a documented public record of Judge Boessenecker's tentative rulings and final orders. Attorneys handling related appeals or reviewing his regulatory jurisprudence should obtain and analyze these documents directly from Napa County Superior Court records.

• critical

  Confirm Retirement and Current Case Assignment

  Judge Boessenecker retired in February 2026. Any attorney with an active matter in Napa County Superior Court must confirm the current assigned judge. This profile does not apply to future appearances before a successor judge.

• important

  Ground Regulatory Arguments in Statutory Text

  The available data from the Hoopes Vineyard matter shows Judge Boessenecker applied regulatory and statutory law strictly. Prepare arguments that anchor squarely in the text of applicable statutes and ordinances rather than relying on equitable or policy-based reasoning.

• important

  Research 2022 Criminal Case Record

  A notable 2022 child molestation case is referenced in the profile. Attorneys handling criminal appeals from his docket should obtain the full case record to understand his evidentiary and procedural rulings in serious felony matters.

• important

  Supplement Profile with Independent Court Record Research

  No attorney observations or analyzed ruling transcripts are available in this profile. Attorneys should independently search Napa County Superior Court public records and any published media coverage of his rulings to build a more complete picture of his decision-making patterns.

• ›Base all arguments on the text of applicable statutes, regulations, and county ordinances — the documented record shows Judge Boessenecker applied regulatory frameworks strictly without documented deviation toward equitable balancing in favor of regulated parties.
• ›Be prepared for tentative rulings in civil and regulatory matters — the Hoopes Vineyard record documents that he issued tentative rulings prior to final orders, so review any tentative ruling carefully before oral argument.
• ›Treat regulatory compliance arguments from opposing counsel seriously — in the Hoopes Vineyard matter, the county's enforcement position prevailed, and dismissing the regulatory framework as overly technical was not a successful strategy for the regulated party.