Judge Michelle E. DeCasas

Judge Michelle E. DeCasas was appointed to the Los Angeles Superior Court by Governor Gavin Newsom on April 28, 2020, making her part of a cohort of relatively recent judicial appointees on the bench. She earned her law degree from UCLA School of Law and holds California Bar Number 228840. Her pre-bench career spans two distinct phases: approximately four years as a civil litigation associate at Tesser & Ruttenberg, followed by roughly thirteen years as a deputy city attorney in the Office of the Los Angeles City Attorney from 2007 until her appointment. This career trajectory means Judge DeCasas brings substantial government-side civil litigation experience to the bench, with particular depth in municipal law and public entity practice. Because no ruling analyses, attorney observations, or ingested content are available at this time, no patterns in her judicial decision-making, motion practice preferences, or courtroom management style can be reported with evidentiary support. What is established is that her professional formation was shaped by high-volume civil litigation in a large public law office, where procedural compliance, institutional interests, and government liability frameworks are central concerns. Attorneys appearing before Judge DeCasas should treat her as a judge whose background reflects both private civil litigation fundamentals and extensive public-sector legal practice.

Given Judge DeCasas's thirteen-year tenure as a deputy city attorney, attorneys should anticipate that she is well-versed in procedural rigor and institutional litigation practice. Government entities and public agencies were her clients for the majority of her legal career, which means she has direct familiarity with the arguments, defenses, and procedural postures commonly advanced by public defendants. Attorneys representing private parties against government entities should be prepared to address those arguments with precision and should not assume the court is unfamiliar with standard public-entity defenses. Her background as a civil litigation associate at a private firm before transitioning to public service indicates exposure to both plaintiff-side and defense-side civil litigation mechanics. Attorneys should ensure their briefs and motions are procedurally sound and factually grounded, as her career history reflects experience in environments where procedural compliance and factual development are prioritized. Because no ruling data is currently available, attorneys should independently research her recent docket through the Los Angeles Superior Court's public records and Trellis to supplement this profile before any appearance.

• critical

  Conduct Independent Docket Research

  Pull Judge DeCasas's recent rulings directly from the Los Angeles Superior Court's online docket and Trellis before any appearance. This profile contains no ruling analyses, making independent research the only way to identify her current motion practice patterns.

• critical

  Contact Her Clerk for Courtroom Preferences

  Because no attorney observations are available, contact the clerk's office at Stanley Mosk Courthouse to confirm her current preferences on tentative rulings, oral argument requests, and filing formatting requirements.

• important

  Prepare Procedurally Airtight Filings

  Her career in a large public law office — where procedural compliance is a standard institutional expectation — warrants meticulous attention to filing deadlines, page limits, and local rule compliance in all submissions.

• important

  Anticipate Familiarity with Public Entity Arguments

  If your matter involves a government entity, prepare to address public-entity defenses, immunity doctrines, and claims presentation requirements with specificity. Her thirteen years as a deputy city attorney mean she has litigated these issues from the inside.

• important

  Review Los Angeles Superior Court Local Rules

  Ensure full compliance with the LASC local rules applicable to your department. As a relatively recent appointee, she operates within the established court infrastructure, and local rule compliance is a baseline expectation.

• ›Verify current courtroom protocols directly with the clerk's office at Stanley Mosk Courthouse before your first appearance, as no attorney observation data is available to confirm standing practices.
• ›Treat procedural compliance as non-negotiable given her background in a high-volume public law office where institutional procedure is a professional standard.
• ›Be prepared to address both private civil litigation principles and public-entity legal frameworks, as her career spans both environments.
• ›Do not assume familiarity with informal courtroom customs without confirmation — her 2020 appointment means she has had fewer years to establish publicly documented preferences.