Louis B. Buchman

Patrick Jaïs is a top attorney recognized by Best Lawyers in the practice area(s) of Capital Markets Law, Corporate Law and Mergers and Acquisitions Law. Patrick, who practices law in Paris, France, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patrick is held by other top lawyers in the same geographic and legal practice area.

Géraldine Machinet is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Géraldine, who practices law in Paris, France, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Géraldine is held by other top lawyers in the same geographic and legal practice area.

Guillaume Kellner is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law and Private Equity Law. Guillaume, who practices law in Paris, France, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Guillaume is held by other top lawyers in the same geographic and legal practice area.

Joanna Gumpelson is a top attorney recognized by Best Lawyers in the practice area(s) of Insolvency and Reorganization Law and Litigation. Joanna, who practices law in Paris, France, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joanna is held by other top lawyers in the same geographic and legal practice area.

Peter Sherwin is a partner in the Litigation Department, head of the International Arbitration Group, head of the Commercial Real Estate Litigation Group, and a member of the Latin America Practice. Peter counsels clients in complex cross-border commercial disputes, often involving a joint venture, a licensing or distribution relationship, or an acquisition, most of which are resolved in international arbitration and the rest in federal and state courts in the United States. He has significan...

Sébastien Boullier de Branche is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Structured Finance Law. Sébastien, who practices law in Paris, France, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sébastien is held by other top lawyers in the same geographic and legal practice area.

Henri-Louis DELSOL is co-head of the PARIS office’s "Merges & Acquisitions - Corporate law" Department. A lawyer with the PARIS and NEW YORK Bars, he has developed recognized expertise in : sales, acquisitions and restructurings (mergers, partial asset transfers, LBOs, etc.) ; stock-market transactions (particularly public offerings) ; fundraising amongst business angels, financial investors and manufacturers ; implementation of incentive mechanisms for staff and directors (manageme...

François Braud is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law, Environmental Law and Public Law. François, who practices law in Paris, France, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which François is held by other top lawyers in the same geographic and legal practice area.

Olivier joined Rivière I Avocats I Associés in 2006, as a junior associate dedicated to urban planning and heritage law issues in the real estate restoration operations department, after initial professional experience within a leading law firm. His areas of expertise include urban planning and development, environmental, public property, public real estate contracts and energy. From the moment he joined the firm, Olivier had the ambition to partner with and make the firm count ...

Following a career in the private sector and in law firms, Jean-Jacques Uettwiller founded UGGC Avocats – with other lawyers – in 1993. From the onset, his foremost speciality is the law of company transfers (what some posers call M&A), providing advice or assisting with litigation, but also deal with the management of the personal assets of wealthy families. In fact, his practice is both international and multidisciplinary at the same time since it covers international arbitr...