Breeanna N. Brewer
Senior Associate
Tel:
(213) 955-9240
Email:
bbrewer@willenken.comFax:
(213) 955-9250
Biography
- Bio
- Honors
- Winning Matters
- Cases
- Professional Affiliations
- Publications
- News
Breeanna Brewer is a trial lawyer who represents clients in complex commercial, intellectual property, entertainment, social media, and emerging technology disputes. She has served on six trial teams in state and federal courts, including as second or third chair in four jury trials, gaining substantial courtroom experience in high-stakes business disputes. That experience informs a trial-focused approach to litigation: identifying the issues most likely to drive the outcome and developing the case around them from the outset.
Breeanna’s recent work includes serving on the team representing AbbVie in a pharmaceutical supply dispute in the Delaware Court of Chancery, where she helped develop expert and percipient witness examinations, formulate damages strategy, and draft post-trial briefing that contributed to a judgment exceeding $500 million. She also represented an entity affiliated with Katy Perry in a real estate and contract dispute, helping secure the client’s acquisition rights and a $15 million verdict against a competing buyer. In another case, she served as second chair defending a Fortune 50 home improvement retailer in a high-stakes commercial dispute, leading the medical expert component of the defense and preparing to examine more than 20 witnesses before the matter resolved favorably on the first day of trial.
Breeanna’s practice also includes intellectual property and related business disputes involving fashion, media and entertainment, social media, and technology companies. In a federal trademark trial, Breeanna served on the team representing one of the world’s largest toy and entertainment companies, where she cross-examined multiple witnesses, including a named plaintiff, and helped prepare the opening statement, closing argument, and trial presentations. She has also played key roles in securing dismissal of contract, copyright, and trademark claims against a major social media company and defending those dismissals on appeal in the Second, Fifth, and Ninth Circuits.
Breeanna maintains a particular focus on the intersection of litigation, technology, and artificial intelligence, including how emerging technologies are reshaping business risk, discovery, evidence, and dispute resolution. She spearheads Willenken’s research into innovative legal technologies and artificial intelligence, and helps develop responsible ways to use these tools to litigate matters more efficiently and effectively. She also maintains an active pro bono practice and currently represents a family seeking asylum in the United States. Breeanna has been repeatedly recognized by Best Lawyers: Ones to Watch for commercial litigation since 2024 and was selected as a Leadership Council on Legal Diversity (LCLD) Pathfinder in 2022.
Before joining Willenken, Breeanna practiced at an Am Law 25 firm. She earned her J.D. from the University of Michigan Law School, where she served as a contributing editor of the Michigan Law Review and externed with the U.S. Attorney’s Office in Los Angeles.
- Recognized as “One-to-Watch” for Commercial Litigation and Entertainment and Sports Law, Best Lawyers: Ones-to-Watch in America, 2024-2027
- Recognized in “Women in the Law,” Best Lawyers in America, 2024
- “Southern California Rising Star,” Super Lawyers, 2023-2026
The following is a representative sample of Breeanna’s casework:
- AbbVie Endocrine, Inc. v. Takeda Pharmaceutical Company. As a member of a 100%-diverse trial team in “one of the five big healthcare lawsuits” of the year, secured a favorable ruling on behalf of AbbVie Endocrine, Inc. in a high-stakes breach of contract case against Takeda Pharmaceutical Co. Breeanna assisted in developing questioning and defense of multiple expert and percipient witnesses during the trial in Delaware Chancery Court, and in phase two, Breeanna assisted in orchestrating the damages strategy resulting in a $448 million judgment. Takeda ultimately paid a final judgment that, including pre-and post-judgment interest, totaled $506 million.
- All Plastic, Inc. v. SamDan LLC, et al. On behalf of All Plastic, Inc., brought a patent infringement lawsuit in the District Court of Colorado, where based upon arguments presented during the Markman hearing and the underlying briefing, the court adopted substantially all of the firm’s proposed constructions for seven contested terms of eight patent claims, which placed our client in an extremely advantageous position for a successful settlement obtained just days before trial.
- Bird Nest, LLC v. Competing Buyer. Secured the right to acquire a former convent from the Roman Catholic Archdiocese of Los Angeles for redevelopment into a residential compound and, in the process, defeated the claims of a competing buyer (hotel developer). As a member of the trial team, Breeanna helped developed questioning and defense of multiple party and percipient witnesses and assisted in orchestrating the damages strategy resulting in a $15 million verdict against the competing buyer.
- Thompson v. Enfants Riches Deprimes, LLC. Obtained a favorable settlement for a punk-influenced luxury fashion label against a former accountant and business manager for fraud, breach of fiduciary duty, breach of contract, and accounting malpractice. Breeanna drafted a motion to compel that was granted and secured the production of documents previously withheld through analysis of metadata.
- Global Software Corporation v. Former Executive. Represented and successfully defended high-level software engineering executive against wide-ranging allegations of trade secret misappropriation and breach of a confidentiality agreement brought by a global software giant when he left for a competitor start-up. After a pre-litigation remediation overseen by a third-party neutral, all allegations were dropped and settled on favorable terms to the client.
- Individual Users v. Social Media Company. Aided in motion practice in trial court on behalf of a social media company in Section 230 cases.
- Individual User v. Prominent Streaming Service. Aided in motion practice in trial court on behalf of a prominent streaming service in a trademark and copyright infringement case.
- Individual Consumers v. Major Automotive Company. Served as second and third chair during two California state jury trials, where she represented a prominent automobile manufacturer in cases involving allegations of fraud. Breeanna played a key role in orchestrating trial strategy. She developed the questioning and defense of multiple expert and percipient witnesses. Breeanna also obtained various favorable settlements for the automobile manufacturer in other individual consumer actions involving allegations of fraud.
- Century City Bar Association, Member
- Leadership Council on Legal Diversity, 2022 Pathfinder
- Women Lawyers Association of Los Angeles, Member
- “Ninth Circuit Spokeo Decisions on Remand Lays the Groundwork for Establishing a Concrete Injury-in-Fact,” Co-Author with Rebekah S. Guyon, The State Bar of California: Antitrust, UCL, & Privacy Section, September 2017
Biography
Breeanna Brewer is a trial lawyer who represents clients in complex commercial, intellectual property, entertainment, social media, and emerging technology disputes. She has served on six trial teams in state and federal courts, including as second or third chair in four jury trials, gaining substantial courtroom experience in high-stakes business disputes. That experience informs a trial-focused approach to litigation: identifying the issues most likely to drive the outcome and developing the case around them from the outset.
Breeanna’s recent work includes serving on the team representing AbbVie in a pharmaceutical supply dispute in the Delaware Court of Chancery, where she helped develop expert and percipient witness examinations, formulate damages strategy, and draft post-trial briefing that contributed to a judgment exceeding $500 million. She also represented an entity affiliated with Katy Perry in a real estate and contract dispute, helping secure the client’s acquisition rights and a $15 million verdict against a competing buyer. In another case, she served as second chair defending a Fortune 50 home improvement retailer in a high-stakes commercial dispute, leading the medical expert component of the defense and preparing to examine more than 20 witnesses before the matter resolved favorably on the first day of trial.
Breeanna’s practice also includes intellectual property and related business disputes involving fashion, media and entertainment, social media, and technology companies. In a federal trademark trial, Breeanna served on the team representing one of the world’s largest toy and entertainment companies, where she cross-examined multiple witnesses, including a named plaintiff, and helped prepare the opening statement, closing argument, and trial presentations. She has also played key roles in securing dismissal of contract, copyright, and trademark claims against a major social media company and defending those dismissals on appeal in the Second, Fifth, and Ninth Circuits.
Breeanna maintains a particular focus on the intersection of litigation, technology, and artificial intelligence, including how emerging technologies are reshaping business risk, discovery, evidence, and dispute resolution. She spearheads Willenken’s research into innovative legal technologies and artificial intelligence, and helps develop responsible ways to use these tools to litigate matters more efficiently and effectively. She also maintains an active pro bono practice and currently represents a family seeking asylum in the United States. Breeanna has been repeatedly recognized by Best Lawyers: Ones to Watch for commercial litigation since 2024 and was selected as a Leadership Council on Legal Diversity (LCLD) Pathfinder in 2022.
Before joining Willenken, Breeanna practiced at an Am Law 25 firm. She earned her J.D. from the University of Michigan Law School, where she served as a contributing editor of the Michigan Law Review and externed with the U.S. Attorney’s Office in Los Angeles.
Honors
- Recognized as “One-to-Watch” for Commercial Litigation and Entertainment and Sports Law, Best Lawyers: Ones-to-Watch in America, 2024-2027
- Recognized in “Women in the Law,” Best Lawyers in America, 2024
- “Southern California Rising Star,” Super Lawyers, 2023-2026
Winning Matters
Cases
The following is a representative sample of Breeanna’s casework:
- AbbVie Endocrine, Inc. v. Takeda Pharmaceutical Company. As a member of a 100%-diverse trial team in “one of the five big healthcare lawsuits” of the year, secured a favorable ruling on behalf of AbbVie Endocrine, Inc. in a high-stakes breach of contract case against Takeda Pharmaceutical Co. Breeanna assisted in developing questioning and defense of multiple expert and percipient witnesses during the trial in Delaware Chancery Court, and in phase two, Breeanna assisted in orchestrating the damages strategy resulting in a $448 million judgment. Takeda ultimately paid a final judgment that, including pre-and post-judgment interest, totaled $506 million.
- All Plastic, Inc. v. SamDan LLC, et al. On behalf of All Plastic, Inc., brought a patent infringement lawsuit in the District Court of Colorado, where based upon arguments presented during the Markman hearing and the underlying briefing, the court adopted substantially all of the firm’s proposed constructions for seven contested terms of eight patent claims, which placed our client in an extremely advantageous position for a successful settlement obtained just days before trial.
- Bird Nest, LLC v. Competing Buyer. Secured the right to acquire a former convent from the Roman Catholic Archdiocese of Los Angeles for redevelopment into a residential compound and, in the process, defeated the claims of a competing buyer (hotel developer). As a member of the trial team, Breeanna helped developed questioning and defense of multiple party and percipient witnesses and assisted in orchestrating the damages strategy resulting in a $15 million verdict against the competing buyer.
- Thompson v. Enfants Riches Deprimes, LLC. Obtained a favorable settlement for a punk-influenced luxury fashion label against a former accountant and business manager for fraud, breach of fiduciary duty, breach of contract, and accounting malpractice. Breeanna drafted a motion to compel that was granted and secured the production of documents previously withheld through analysis of metadata.
- Global Software Corporation v. Former Executive. Represented and successfully defended high-level software engineering executive against wide-ranging allegations of trade secret misappropriation and breach of a confidentiality agreement brought by a global software giant when he left for a competitor start-up. After a pre-litigation remediation overseen by a third-party neutral, all allegations were dropped and settled on favorable terms to the client.
- Individual Users v. Social Media Company. Aided in motion practice in trial court on behalf of a social media company in Section 230 cases.
- Individual User v. Prominent Streaming Service. Aided in motion practice in trial court on behalf of a prominent streaming service in a trademark and copyright infringement case.
- Individual Consumers v. Major Automotive Company. Served as second and third chair during two California state jury trials, where she represented a prominent automobile manufacturer in cases involving allegations of fraud. Breeanna played a key role in orchestrating trial strategy. She developed the questioning and defense of multiple expert and percipient witnesses. Breeanna also obtained various favorable settlements for the automobile manufacturer in other individual consumer actions involving allegations of fraud.
Professional Affiliations
- Century City Bar Association, Member
- Leadership Council on Legal Diversity, 2022 Pathfinder
- Women Lawyers Association of Los Angeles, Member
Publications
- “Ninth Circuit Spokeo Decisions on Remand Lays the Groundwork for Establishing a Concrete Injury-in-Fact,” Co-Author with Rebekah S. Guyon, The State Bar of California: Antitrust, UCL, & Privacy Section, September 2017
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