##  [Dorien Avaux](/en/team/dorien-avaux) 

#  Dorien Avaux 

About

Dorien Avaux brings together years of experience in construction, corporate, lease, and insolvency law. She advises and represents business owners and individuals, and also serves as a trustee at the Dutch-language Commercial Court in Brussels.

Her approach is personal and well-considered. Dorien takes the time to thoroughly familiarize herself with each case and tailors her advice directly to the client’s needs. This results in a clear course of action, grounded in experience, consultation, and a keen understanding of the situation at hand.



 

Education

- Master of Laws (LL.M.) – University of Antwerp
- Advanced Master’s in Corporate Law – Catholic University of Brussels
- Postgraduate Program in Real Estate Studies – KU Leuven

**Admitted to the Brussels Bar**  
**Trustee at the Dutch-Language Commercial Court of Brussels**



 

 

 

       ![Dorien Avaux, team member bij Yusto](/sites/default/files/styles/50_width_in_container_max/public/2026-08/wit_20260623_142643web.jpg.webp?itok=afdf0Jok "Dorien Avaux, team member bij Yusto") 

 



 



 

 

## Other team members

 [All team members](/en/about-us) 



 [       ![Dirk Merckx, partner bij Yusto](/sites/default/files/styles/50_width_in_container_max/public/2026-08/wit_20260623_153414web.jpg.webp?itok=429qHAgg "Dirk Merckx, partner bij Yusto") 

 



 

Partner

 

 

 

##  Dirk Merckx 

Dirk Merckx practices, thinks and breathes tax law. During his studies at KU Leuven, he developed a strong interest for corporate and tax law, which he later successfully applied in practice at the Brussels Bar. As the founder of Novius (now Yusto), Dirk places great value on offering transparent and honest advice. He guides clients towards legally sound solutions, beginning with a realistic assessment of the chances of success and ensuring consistent follow-up throughout the process.



 

 ](/en/team/dirk-merckx)

 

 [       ![Michaël Boudry, Partner bij Yusto](/sites/default/files/styles/50_width_in_container_max/public/2026-08/wit_20260623_153137web.jpg.webp?itok=r2xZPJau "Michaël Boudry, Partner bij Yusto") 

 



 

Partner

 

 

 

##  Michaël Boudry 

Michaël Boudry has been part of Novius, now Yusto, since 2007, becoming a partner in 2013. With an LL.M. in Corporate Law and a postgraduate degree in Entrepreneurship and Innovation, Michaël is the trusted legal advisor to numerous entrepreneurs and companies. Accessible, understanding and with in-depth expertise, he guides clients towards well-founded solutions and long-term peace of mind.



 

 ](/en/team/michael-boudry)

 

 [       ![Toon Proost, partner bij Yusto](/sites/default/files/styles/50_width_in_container_max/public/2026-08/wit_20260623_151424web.jpg.webp?itok=j7EF_Lla "Toon Proost, partner bij Yusto") 

 



 

Partner

 

 

 

##  Toon Proost 

Toon Proost started as a trainee attorney at Novius in 2009. He learned the subtleties of insolvency law in-house, under the mentorship of Ronald Parys. In addition to being an attorney and bankruptcy trustee, Toon is a partner at Yusto and guides entrepreneurs with a 360° perspective, from start-up to estate planning. In doing so, he always seeks the most optimal economic solution, which he then legally frames. His approach is pragmatic and solution-oriented, with a strong focus on the economic interests of his clients.



 

 ](/en/team/toon-proost)

 

 [       ![Jens Leemans, team member bij Yusto](/sites/default/files/styles/50_width_in_container_max/public/2026-08/wit_20260623_120259web.jpg.webp?itok=JxZUezut "Jens Leemans, team member bij Yusto") 

 



 

Lawyer

 

 

 

##  Jens Leemans 

Jens Leemans obtained his Master of Laws from KU Leuven in 2022 and further specialized in corporate law in 2023. Since October 2023, he has been working at Yusto, where he can pursue his passion for the corporate world. Jens has broad expertise in various legal fields, with a pronounced specialization in corporate and insolvency law. He combines in-depth professional knowledge with keen analytical skills and constantly strives to provide pragmatic solutions that are perfectly tailored to the client's needs. His client focus, proactive approach, and resilience are central to this.



 

 ](/en/team/jens-leemans)

 

 

 





 

 



 

 

CTA team member

##  For those who build  
what last 

 

For entrepreneurs, family businesses and investors. People who make decisions that matter. Those who want to grow, protect, invest or transfer.



 

[Who we serve](/en/whom)

 

 

      ![Het Yusto team. De juiste knowhow, exact waar het telt. Juridisch en fiscaal advies voor ondernemers die vooruit kijken, van oprichting en groei tot investering, herstructurering en overdracht.](/sites/default/files/styles/full_width_in_container_xl/public/2026-08/teamfoto.png.webp?itok=9ldIdpcK "Het Yusto team")