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Haiyan Cai

Legal adviser/Head of immigration

CMS Francis Lefebvre Avocats
2 rue Ancelle
92522 Neuilly-sur-Seine
Languages Chinese, English, French

Haiyan Cai joined CMS Paris in 2017. 

Haiyan was among the first generation of legal advisers to aid Chinese outbound investments to get started in France.
Haiyan graduated with degrees in Customs Practice and a Master in Law.  She joined the China desk of DS Avocats in 2003 where she was assigned to Chinese Greenfield investments.
She works to assure legal services in international mobility for top international managers and their families.
With 17 years of field experience, she designs and implements the immigration policies and methods with our Labor Law, Social Security Law and Tax Law specialists to ensure a one-stop service.
She is a frequent lecturer to promote the French investment environment for foreign companies, which bridges people, languages and cultures.
With a comprehensive view of the problems that investors might encounter, she offers effective and time-saving solutions.
She has extensive experience servicing Chinese and other international companies listed in Fortune’s Global 500.
Haiyan speaks French, English and Chinese.

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Relevant experience

  • DS Avocats Law Firm paralegal and legal adviser (2003-2007)


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  • Master in Law and Customs Practices - Paris Descartes University (2007)


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  • Short term missions ‘Doing Business guide ‘ by Business France (March 2015)
  • Mobilité internationale : point d’actualité pour les employeurs étrangers détachant des travailleurs en France - Les Echos Exécutives (16/04/2018)
  • Brexit: what about UK citizens working in France? - CMS (26/03/2019)
  • Intégration d'un talent étranger en France : quelles nouveautés ? - Les Echos Exécutives (22/05/2019)
  • The ins and outs of Brexit - Employment and tax aspects - Webinar (06/06/2019)
  • Détachement transnational de salariés : le rôle du donneur d'ordre renforcé pour lutter contre le travail illégal - Les Echos Exécutives (31/07/2019)



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France entered the state of san­it­ary emer­gency on Monday 16th March and an­nounced the clos­ure of its bor­ders on March 17 to non-EU res­id­ents for 30 days. French ad­min­is­tra­tions, con­su­lates in charge...
21 February 2020
Coronavir­us: What are the em­ploy­er’s ob­lig­a­tions un­der French la­bour law...
Deal­ing with the situ­ation of staff serving in the af­fected areas First of all, it is worth not­ing that ex­pat­ri­ate em­ploy­ees were able to re­gister with the French con­su­late. This step en­sures that in...
Coronavir­us: What are the em­ploy­er’s ob­lig­a­tions un­der French la­bour law...
Since the World Health Or­gan­iz­a­tion (WHO) has de­clared the coronavir­us out­break to be “a glob­al pub­lic health emer­gency”, em­ploy­ers must pre­pare for it, par­tic­u­larly if any of their em­ploy­ees have...
06 June 2019
We­bin­ar: The ins and outs of Brexit – em­ploy­ment and tax as­pects
Brexit has already seen UK-based busi­nesses move part or all of their op­er­a­tions to oth­er EU jur­is­dic­tions, par­tic­u­larly those with key stra­tegic fin­an­cial and com­mer­cial centres. This we­bin­ar will out­line...