Our Team
“We must make our choice. We may have democracy, or we may have wealth concentrated in the hands of a few, but we can't have both.”
-Supreme Court Justice Louis Brandeis
For nearly a decade, Blake has been at the forefront of litigation challenging corporate malfeasance and misconduct.
His range of legal expertise spans includes antitrust, consumer protection, commercial dispute, and data privacy subjects supported by a foundation of elite level civil procedure. Many of Blake’s cases involve new and emerging developments which harm consumers, small businesses, workers, and municipalities, including the proliferation of artificial intelligence, dynamic pricing set by algorithms, new forms of market manipulation, weaponization of biometric surveillance, wide-scale fraud on digital platforms, surreptitious collection of private information and advanced methods of price fixing by market competitors.
Blake has been appointed to leadership positions in both state and federal courts, with his work featured in The New York Times, Yahoo! News, The Los Angeles Times, The RealDeal, CNN, ESPN, and elsewhere.
Outside of the courtroom, Blake spends a significant amount of his time giving back.
He is an appointed member of the Community Board in New York City, a founding member of the Theodore Roosevelt Presidential Library, a former community organizer for President Barack Obama’s re-election campaign, a former radio show host, and was a student assistant coach for over two seasons with the University of Miami Hurricanes.
Blake has his Juris Doctor from the Benjamin N. Cardozo School of Law with a concentration in Intellectual Property and Data Law as well as his Bachelor of Arts degree in history from the University of Miami. Blake has lectured at numerous law schools, including University of California-Irvine, Hofstra University, and the University of Miami. In 2025, Blake also was offered a teaching position at Yale University’s law school at Yale’s private law clinic. In 2026, he was awarded a DC Pro Bono award for his representation of indigent clients.
Blake Hunter Yagman - Founding and Managing Partner
Allen is a member of the Florida Bar since 2018. Allen possesses litigation experience encompassing a broad spectrum of industries and subject matters. His practice reflects a commitment to rigorous legal analysis, strategic advocacy, and client-focused representation at every stage of the litigation process — from pre-suit negotiations through verdict.
Allen served as in-house counsel for an insurance carrier, where he developed an intimate understanding of how insurers assess risk, evaluate claims, and approach litigation from the inside. Allen's commercial litigation experience has afforded him the opportunity to counsel and represent a diverse clientele — from individual claimants and small business owners to mid-sized and large enterprises operating across a wide range of industries. He brings a thorough understanding of the client's objectives and legal exposure, translating complex factual and legal issues into clear, actionable strategy. Allen's balanced, detail-oriented approach to dispute resolution — whether at the negotiating table or in the courtroom — has consistently produced favorable outcomes for his clients.
Allen is fluent in Spanish and is deeply committed to delivering effective, accessible, and personalized representation to each client he serves, regardless of the complexity or scale of the matter. He earned his Bachelor of Science from Florida State University and his Juris Doctor from Florida International University College of Law. Beyond the practice of law, Allen serves as team captain of a competitive ice hockey team — a role that speaks to his instinct for leadership, composure under pressure, and his belief in the power of a well-coordinated team effort, values he brings to every client engagement.
Allen N. Neumark - Partner
Valerie Chaykovska is a Legal Assistant at Yagman PLLC, where she works alongside the firm's attorneys on complex litigation matters involving antitrust, consumer protection, data privacy, and class action litigation. She provides comprehensive litigation and administrative support with a strong commitment to professionalism, organization, and exceptional client service. She resides in Philadelphia with her husband.
Prior to joining Yagman PLLC, Valerie served as Executive Assistant to the Chief Executive Officer of a Philadelphia-based real estate investment and development company, where she helped manage high-level operations and supported multiple business ventures. Earlier in her career, she worked as a Commercial Property Manager for a Dallas-based real estate developer, gaining valuable experience in operations, client relations, and project coordination. Her diverse background in executive operations and real estate has equipped her with exceptional organizational, communication, and problem-solving skills that translate seamlessly to the fast-paced demands of complex litigation.
At Yagman PLLC, Valerie assists with legal research, memorandum preparation, investigation of potential new matters, client intake, document management, and a broad range of administrative responsibilities. She approaches every assignment with meticulous attention to detail, discretion, and a proactive mindset, helping the team navigate complex matters efficiently while ensuring clients receive responsive, personalized support throughout the legal process.
