People

Jose DeJesus Analyst

New York

Jose DeJesus is a paralegal in the Finance Business Unit and the Public Finance practice group. He has participated in financings in which the firm has served as bond counsel, underwriter’s counsel and borrower counsel for various tax-exempt and taxable municipal and project financings.  He works mainly for the Energy and Infrastructure Group.  His duties include preliminary drafting of documents and UCC financing statements, preparation for and assisting with closings as well as post-closing matters.  He has been with the firm since 1995 and has been working as a paralegal since 1984.

Kristina Arianina Of Counsel

Washington, D.C.

As a member of Orrick’s Complex Litigation & Dispute Resolution team, Kristina has extensive experience representing clients in challenging and high-stakes cases. She has a particular focus on trade secret misappropriation cases in the tech industry, where she has both prosecuted and defended claims.

Kristina’s commercial litigation experience includes litigating claims of false advertising, unfair competition, business fraud, negligence, breaches of contract and fiduciary duties. She also has substantial experience with the False Claims Act, both with and without the government’s involvement.

In addition to her litigation experience, Kristina has conducted numerous internal investigations and compliance assessments in the United States and abroad. She has also represented companies and individuals in matters before the U.S. Department of Justice (DOJ) and the Office of Foreign Assets Control (OFAC).

A first-generation immigrant from Russia to the United States, Kristina is passionate about her pro bono work. She played a leading role in the firm’s collaboration with Public International Law & Policy Group on the Ukraine Accountability Initiative and represented clients in reproductive rights and termination of parental rights cases.

Kristina Arianina Of Counsel

Washington, D.C.

As a member of Orrick’s Complex Litigation & Dispute Resolution team, Kristina has extensive experience representing clients in challenging and high-stakes cases. She has a particular focus on trade secret misappropriation cases in the tech industry, where she has both prosecuted and defended claims.

Kristina’s commercial litigation experience includes litigating claims of false advertising, unfair competition, business fraud, negligence, breaches of contract and fiduciary duties. She also has substantial experience with the False Claims Act, both with and without the government’s involvement.

In addition to her litigation experience, Kristina has conducted numerous internal investigations and compliance assessments in the United States and abroad. She has also represented companies and individuals in matters before the U.S. Department of Justice (DOJ) and the Office of Foreign Assets Control (OFAC).

A first-generation immigrant from Russia to the United States, Kristina is passionate about her pro bono work. She played a leading role in the firm’s collaboration with Public International Law & Policy Group on the Ukraine Accountability Initiative and represented clients in reproductive rights and termination of parental rights cases.

David Rhinesmith Partner

Washington, D.C.

David represents clients in matters involving the False Claims Act (FCA), the Anti-Kickback Statute, the Foreign Corrupt Practices Act (FCPA), federal securities laws, and the Food, Drug, and Cosmetic Act, among others. He has particular experience handling government investigations and complex civil litigation arising under state and federal false claims acts, including whistleblower-initiated FCA suits. His litigation experience includes oral argument before the First Circuit and state appellate courts, leading briefing in federal and state trial and appellate courts, and deposing senior government officials.  

David routinely leads internal investigations relating to a range of ethics, fraud and corruption issues, including bribery, corruption, accounting fraud, revenue recognition, embezzlement, and other misconduct. David also has extensive compliance experience. He served as Global Investigations & Compliance Counsel at a leading medical device company, and served as Counsel with the Legal Compliance & Investigations team at one of the world's largest technology companies (both client secondments). He played a key role in multiple DOJ- and SEC-appointed corporate compliance monitorships, as both counsel to the Monitor and helping clients successfully navigate monitorships. He routinely works with clients to develop and enhance their compliance programs.

David previously worked as an Assistant Attorney General in the Massachusetts Attorney General’s Office, serving as lead counsel in more than a dozen criminal and civil matters at all levels of federal and state court.  

David is the hiring partner for the Washington, D.C. office and partner in charge of Orrick's D.C. summer program. He serves as firm-wide staffing partner for his practice group and is a member of the practice's professional development committee. He is deeply committed to associate development and mentoring.

In 2017, 2018, 2019, and 2020 David was selected to the Washington, D.C. Super Lawyers Rising Stars list.

David Rhinesmith Partner

Washington, D.C.

David represents clients in matters involving the False Claims Act (FCA), the Anti-Kickback Statute, the Foreign Corrupt Practices Act (FCPA), federal securities laws, and the Food, Drug, and Cosmetic Act, among others. He has particular experience handling government investigations and complex civil litigation arising under state and federal false claims acts, including whistleblower-initiated FCA suits. His litigation experience includes oral argument before the First Circuit and state appellate courts, leading briefing in federal and state trial and appellate courts, and deposing senior government officials.  

David routinely leads internal investigations relating to a range of ethics, fraud and corruption issues, including bribery, corruption, accounting fraud, revenue recognition, embezzlement, and other misconduct. David also has extensive compliance experience. He served as Global Investigations & Compliance Counsel at a leading medical device company, and served as Counsel with the Legal Compliance & Investigations team at one of the world's largest technology companies (both client secondments). He played a key role in multiple DOJ- and SEC-appointed corporate compliance monitorships, as both counsel to the Monitor and helping clients successfully navigate monitorships. He routinely works with clients to develop and enhance their compliance programs.

David previously worked as an Assistant Attorney General in the Massachusetts Attorney General’s Office, serving as lead counsel in more than a dozen criminal and civil matters at all levels of federal and state court.  

David is the hiring partner for the Washington, D.C. office and partner in charge of Orrick's D.C. summer program. He serves as firm-wide staffing partner for his practice group and is a member of the practice's professional development committee. He is deeply committed to associate development and mentoring.

In 2017, 2018, 2019, and 2020 David was selected to the Washington, D.C. Super Lawyers Rising Stars list.

Ignacio Concha Managing Associate

New York

Ignacio's work focuses on project finance and development, general corporate matters and miscellaneous investor arrangements in all phases of the development, financing, construction and operation of primarily renewable energy and infrastructure projects. He also extensive experience advising in acquisitions and sales of these types of assets, often involving a cross-border component.

Before joining Orrick, Ignacio worked at prestigious law firms in New York, California, and Chile, successfully guiding clients through cross-border and domestic transactions. Known for his collaborative approach and strong negotiating skills, he excels at working closely with stakeholders to achieve impactful outcomes.

Ignacio Concha Managing Associate

New York

Ignacio's work focuses on project finance and development, general corporate matters and miscellaneous investor arrangements in all phases of the development, financing, construction and operation of primarily renewable energy and infrastructure projects. He also extensive experience advising in acquisitions and sales of these types of assets, often involving a cross-border component.

Before joining Orrick, Ignacio worked at prestigious law firms in New York, California, and Chile, successfully guiding clients through cross-border and domestic transactions. Known for his collaborative approach and strong negotiating skills, he excels at working closely with stakeholders to achieve impactful outcomes.

Will Davis Managing Associate

Los Angeles

Will’s clients include developers, investors, lenders and contractors engaged in transactions related to energy transition and infrastructure decarbonization projects across the U.S. Their experience includes diverse financing structures such as joint ventures, tax equity and cash equity investments, direct lending and mezzanine debt financing, as well as drafting and negotiating project development, equipment purchase and sale, and power purchase agreements.

Will Davis Managing Associate

Los Angeles

Will’s clients include developers, investors, lenders and contractors engaged in transactions related to energy transition and infrastructure decarbonization projects across the U.S. Their experience includes diverse financing structures such as joint ventures, tax equity and cash equity investments, direct lending and mezzanine debt financing, as well as drafting and negotiating project development, equipment purchase and sale, and power purchase agreements.

John (Jay) Williams Partner

Washington, D.C.

Jay has represented clients before the Department of Justice (DOJ), Consumer Financial Protection Bureau (CFPB), Federal Housing Finance Agency (FHFA), Department of Housing and Urban Development (HUD), New York Department of Financial Services (NYDFS) and other state regulators, including state attorneys general. He is focused on the compliance issues surrounding government-insured mortgages and other credit products and works with his clients to conduct compliance and consumer protection reviews to mitigate risk.

Jay has extensive experience assisting clients in matters involving complex electronic discovery issues, such as large-scale document collection, developing effective document retention policies and using cutting-edge technology (including artificial intelligence) to reduce review and production costs.

Active in pro bono work, Jay has represented clients before the U.S. Parole Commission and handled multiple matters with the Washington Lawyers’ Committee. He is a current board member of the Interfaith Action for Human Rights, was a founding board member of the Greater D.C. Diaper Bank, and coaches Capitol Hill Little League baseball teams.

Prior to joining Orrick, Jay was a partner at Buckley LLP. He also was a litigation associate at Venable LLP, where he represented clients in complex commercial litigation and arbitration. During law school, he served as a clerk in the Office of the Public Defender in Montgomery County, Maryland.

John (Jay) Williams Partner

Washington, D.C.

Jay has represented clients before the Department of Justice (DOJ), Consumer Financial Protection Bureau (CFPB), Federal Housing Finance Agency (FHFA), Department of Housing and Urban Development (HUD), New York Department of Financial Services (NYDFS) and other state regulators, including state attorneys general. He is focused on the compliance issues surrounding government-insured mortgages and other credit products and works with his clients to conduct compliance and consumer protection reviews to mitigate risk.

Jay has extensive experience assisting clients in matters involving complex electronic discovery issues, such as large-scale document collection, developing effective document retention policies and using cutting-edge technology (including artificial intelligence) to reduce review and production costs.

Active in pro bono work, Jay has represented clients before the U.S. Parole Commission and handled multiple matters with the Washington Lawyers’ Committee. He is a current board member of the Interfaith Action for Human Rights, was a founding board member of the Greater D.C. Diaper Bank, and coaches Capitol Hill Little League baseball teams.

Prior to joining Orrick, Jay was a partner at Buckley LLP. He also was a litigation associate at Venable LLP, where he represented clients in complex commercial litigation and arbitration. During law school, he served as a clerk in the Office of the Public Defender in Montgomery County, Maryland.

Daniela Glaser Managing Associate

Silicon Valley

Daniela has worked on a variety of Pharmaceutical, Biomedical, Software, and Electronic technology matters (Hatch-Waxman, PTAB Post-Grant, and District Court) and provided support on multiple trials by preparing exhibit lists (and objections), deposition designations (and counter-designations), and demonstratives. She is skilled at working with experts to draft cross- and direct- exam outlines, preparing expert witnesses for trial, coordinating with experts regarding infringement, validity, and damages reports, and serving as a "patent owner" responsible for infringement and invalidity charting and technical analysis. In March 2023, Daniela received the California Lawyers Association's Wiley W. Manuel Pro Bono Services Certificate.

Daniela earned her J.D. from UCLA where she also obtained a Specialization Certificate in Business Law. At UCLA, she was Co-Chair and Outreach Chair of the UCLA IP LA Association, Internal Vice President of the UCLA 1st Generation Law Student Association, and a member of the UCLA Latinx Law Student Association. Before law school, Daniela studied Chemical Engineering, Nanotechnology, and Computer Programming at USC and published research in Electrical Engineering, Sociology, and Inorganic Chemistry.

Daniela is the Secretary of the San Francisco Bay Area Intellectual Property Inn of Court and a member of the Northern District of California chapter of the Federal Bar Association.