PLLC Operating Agreement Lawyers for Irvine, California

I graduated from Yale University magna cum laude, served as a Fulbright Scholar in Italy and attended UC Berkeley School of Law. In 2023, I was named a "Legal Visionary" by the Los Angeles Times. I have broad experience in corporate transactions and in serving as outside general counsel to clients. I started my legal career in Silicon Valley and Hong Kong working on large equity and debt financings and matters for private wealth clients. After returning home to Los Angeles, I advised startup companies with formations, acquisitions and day-to-day matters such as sales contracts and licensing. More recently, I have focused on data, IT and SaaS contracts for both providers and customers. My clients include NASDAQ-listed companies, a top ranked children’s hospital and local startups.

Richard A. Mathurin is as a member of the professional team at Sage Law. Since graduating cum Laude from The University of Notre Dame and UCLA School of Law, Rich has enjoyed an exciting and diversified career in the practice of law. In his early career, he assisted several energy companies all over the world in the development and funding of major wind energy and other green technology projects. Following an assignment by his firm to their Far East offices in Tokyo and Singapore, Rich represented global corporations such as Hitachi, UPS, and Fuji-Xerox in major commercial transactions. More recently, Rich returned to his native San Diego to care for an ill family member and work in the local community. Rich specializes in tax resolution, bankruptcy and small business services helping clients get in compliance with complex tax laws and manage their personal and business finances. When he is not working servicing his valued clients, Rich is an ardent golfer and enjoys rooting for his favorite Boston sports teams.

I am a business attorney and former in-house corporate attorney with more than a decade of experience helping companies navigate contracts, commercial relationships, day-to-day operations, and disputes. My practice includes drafting, reviewing, and negotiating commercial agreements, licenses, leases, vendor and service agreements, and other business arrangements. Licensed in Nevada, California, New York, and Texas, I also hold an Executive MBA. My goal is to serve as practical, long-term outside counsel to small businesses and entrepreneurs that value responsiveness, sound judgment, and advice grounded in commercial realities - not merely technical legal answers. I handle disputes when necessary, but much of the value I bring lies in identifying issues early, preserving business relationships, and preventing avoidable conflicts. I do not bill separately for routine phone calls. I want clients to feel comfortable calling before a small concern becomes an expensive problem, and I am always happy to have an initial conversation to see if the fit is right for you. www.linkedin.com/in/maxkelner

Rhea de Aenlle is a business-savvy attorney with extensive experience in Privacy & Data Security (CIPP/US, CIPP/E), GDPR, CCPA, HIPAA, FERPA, Intellectual Property, and Commercial Contracts. She has over 25 years of legal experience as an in-house counsel, AM Law 100 firm associate, and a solo practice attorney. Rhea works with start-up and midsize technology companies.

A corporate and commercial litigation attorney with transactional and civil litigation experience including corporate and finance transactions, mergers and acquisitions, real estate, commercial contracts, bankruptcy, restructuring, international business transactions, general counsel services, real estate litigation, partnership, joint venture and contract disputes. Additional background skills and experience include investment banking, financial analysis, and management consulting. Sectors covered include technology, media, healthcare, franchises, small to medium enterprises, investment funds, and international business.

Multilingual California Attorney with experience in Immigration, Real Estate, Contracts.

Rosanne (Rosie) Brady Muschenheim is an experienced estate planning attorney practicing law exclusively in trusts, estates, business, and tax law. She studied advanced tax law by taking several courses through Boston University's LLM program. She served as the Western Region Estate Planning Consultant for Bessemer Trust Company in addition to running her own law firm. Rosie spent several years working in Silicon Valley at a prestigious law firm serving ultra high net worth clients, including Founders, Directors, and Officers at companies such as Google, Netflix, Juniper Networks, Tesla, DocuSign, Looker, Nvidia, Xilinx, and Fortinet. Rosie spent time practicing in Honolulu, Hawaii serving ultra high net worth clients, including descendants of Hawaiian royalty. While in Orange County, Rosie assisted many high net worth clients of notable fame in the entertainment industry and the manufacturing industry. Rosie started her own law firm to provide a more customized and personal service to clients than what is offered through larger law firms. Trust is essential to building client relationships, and with her own law firm Rosie is able to provide more attention and care to each client matter.

David M. Abner is a practicing attorney with over 30 years of experience representing clients ranging from startups to Fortune 500 companies in California and Texas. Mr. Abner is currently based in Los Angeles, California, and his practice focuses on negotiating the purchase and sale of businesses; negotiating equity and debt financing agreements; drafting and negotiating revisions to a variety of commercial agreements; and investigating and responding to law enforcement and regulatory compliance investigations. Additionally, Mr. Abner has considerable experience dealing with litigation involving ownership and valuation of privately held companies. He has tried nearly a dozen cases in private practice, including cases involving breach of contract, products liability, fraud, and officer and director liability. As in-house counsel for Ashland Inc., Mr. Abner worked with business leaders daily to assess, manage and prevent a variety of legal risks that threatened the viability and profitability of products, services and customer relationships. His efforts produced results that included settling a $700M anti-trust class action lawsuit for less than $7M; assisting in closing the sale of the company’s joint venture interests in an oil and gas subsidiary; assessing and quantifying the liabilities associated with the acquisition of other businesses; and supervising Ashland’s responses to DOJ, FBI and EPA investigations. Mr. Abner has been licensed to practice law in Texas since 1993, and in California since 2012. Mr. Abner obtained his Juris Doctorate from the Dedman School of Law at Southern Methodist University in 1993, and a Bachelor of Arts degree from the University of South Carolina in 1990.

After 15+ years at leading firms in Silicon Valley, Boston, and DC, I started Supernova Law to partner with the clients who inspire me most—start-ups, mission-driven companies, B-Corps, and non-profits. My goal is simple: provide accessible, affordable, high-quality legal support to innovators creating positive change for our society. At Supernova Law, your vision and values come first.

Member CA State Bar. Martindale-Hubbell rated A-v Preeminent. Avvo 5-stars. Extensive experience in transactional law.