People

Geoffrey Moss Partner

Los Angeles

As a member of Orrick’s Intellectual Property group, Geoff represents clients big and small through all stages of litigation, from pre-suit investigations through trial and appeals. Geoff was a member of the trial team and lead technology associate in Oracle v. Google, the long-running and high stakes lawsuit over Google’s use of Oracle’s Java APIs in the Android operating system. Geoff also has significant experience representing clients in a variety of commercial, employment, and products liability lawsuits.

Before attending law school, Geoff worked as a software developer at The Capital Group Companies, Raytheon, and the Teradata division of NCR.

Geoff spends significant time working on pro bono matters, notably with the Domestic Violence Project through the Los Angeles County Bar Association. The Project helps those in need navigate a complicated legal system in their time of need to get the restraining orders they need to stay safe.

Libby Moulton Partner

San Francisco; Silicon Valley

Libby joins trial teams – both within and outside of Orrick – and takes the role of legal strategist and brief writer. Before trial, Libby develops strategies for raising and preserving legal issues, especially Daubert issues and dispositive motions. At trial, Libby handles the charge conference, Rule 50(a) or directed verdict motions, and pocket briefing as needed. After trial, she manages the post-trial briefing and transitions the case to appeal. 

More than half of Libby's cases involve co-counsel outside of Orrick, where she quickly develops productive and collaborative relationships with outside litigation teams. She has experience in trial courts in Delaware, Texas, California (state and federal), Massachusetts, and the ITC.

In addition to her trial work, Libby maintains a robust appellate practice. Libby leads appellate briefing and has presented oral arguments in the Federal Circuit, Ninth Circuit, and New York Appellate Division. She has also represented clients in appeals to the Sixth Circuit, DC Circuit, California Court of Appeal, and US Supreme Court.

Libby also has an active pro bono practice, including representing the Arizona Federal Public Defender’s Office in an ongoing administrative challenge to capital habeas proceedings.

Prior to joining Orrick, Libby served as a law clerk to Judge Raymond C. Clevenger III of the United States Court of Appeals for the Federal Circuit and to Judge Ronald M. Whyte of the United States District Court for the Northern District of California. Before law school, Libby was a patent examiner in the medical device area at the United States Patent and Trademark Office.

Orion Mountainspring Partner

New York

Orion’s practice has a special focus on representing warehouse lenders and borrowers, forward flow and static pool loan purchasers, as well as issuers, underwriters, and investors in designing bespoke financial transactions in the capital markets.

He covers public and private conduit and term transactions backed by structured asset classes. These encompass a diverse array of financial instruments, ranging from consumer loans and residential mortgages to commercial mortgages, student loans, solar loans, marketplace lending, auto loans, credit cards, shipping, and municipal bonds.

Notably, Orion has structured creative solar securitization programs, underscoring his commitment to innovative solutions within the industry.

Before joining Orrick, Orion was a partner in Chapman and Cutler's Asset Securitization Department. Earlier in his career, he spent time at a major investment bank and was an analyst at one of the top three rating agencies.

Robert Moyle Partner

New York

Rob has experience with a wide variety of asset classes, including credit and charge card receivables, auto loans and leases, dealer floorplan receivables, consumer and small business loans, student loans, tender option bonds and residential mortgages. He represents a variety of market participants, including issuers, sponsors, underwriters, placement and remarketing agents, lenders, borrowers and liquidity providers. Rob also advises clients on the application of securities laws and other financial industry regulations, including Regulation AB II and the rules and regulations promulgated under the Dodd-Frank Act.

Rob joined Orrick in 2005. He serves as Hiring Partner in the New York Office and is a member of the firm’s Professional Development Committee.

Not licensed in Florida.

Whitney-Ann Mulhauser Senior Associate

Washington, D.C.

Whitney-Ann has experience in state and federal courts throughout the country and arbitral tribunals. She can be trusted to jump into a case at any stage to help drive strategy and obtain favorable results. In addition to routinely helping clients obtain early victories through successful motions practice, she has served as a key member on multiple trial teams, including obtaining an important defense verdict after a multi-week trial for a high-profile client. 

Whitney-Ann formerly taught a practical course on civil discovery in federal courts as an adjunct professor at Georgetown University Law Center.

Whitney-Ann was previously a litigation associate at Quinn Emanuel Urquhart & Sullivan, LLP. After law school, she served as the judicial law clerk to the Honorable Judge Ivan D. Davis, United States Magistrate in the Eastern District of Virginia, Alexandria division.

Whitney-Ann maintains an active pro bono practice, focusing on immigration relief for children, families fleeing violence at home, and civil rights issues.

Sarah Mullins Senior Associate

San Francisco

Sarah is an associate in the firm's Intellectual Property group. Before law school, Sarah worked for four years in the in-house legal departments of major technology companies. She draws on her in-house experience to understand her clients' businesses and needs and to come up with creative solutions to their legal challenges.

Immediately prior to joining Orrick, Sarah clerked for Justice Daniel E. Winfree of the Alaska Supreme Court.

During law school, Sarah gained civil litigation experience as a clinical intern in the East Bay Community Law Center's Consumer Justice Clinic and served as a student director of Berkeley Law's Appellate Advocacy course.