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Olivier Sigg

Partner  |  Walder Wyss



Trust and estate planning
Succession disputes


What has been the highlight of your practice over the past 12 months?

I have started a succession litigation on behalf of an American widow, who was married to a wealthy French national resident in Switzerland. My client's client's forced heirship rights are breached and the litigation takes place against the sons of the deceased. The estate is estimated at CHF100mio with assets in multiple jurisdictions.

How did you get into private client?

As a junior associate, I joined the private client practice of one of the main Swiss law firms of which I became a partner and then moved to my current firm. I also worked as a secondary lawyer at the London firm Farrer & Co (with Russell Cohen's team).

What advice would you give rising stars/new lawyers in the private client world?

To try to understand as much as possible the typical concerns and issues of the relevant foreign jurisdictions for a particular client.

What is your favourite quote?

“A bird in the hand is better than two in the bush.”

Do you have any outside interests or hobbies?

I am at the board of Foundation Dr Henri Dubois-Ferrière Dinu Lipatti, which is a well-established Geneva charitable foundation which fights leukemia (https://dfdl.org/). I am regularly organising major events (gala dinners, concerts, etc) in order to raise funds.

When the restaurants reopen, where would you like to go?

Le Bologne, Geneva.