Skip Navigation

Our People

Education

  • B.C.L., Bachelor of Civil Law (National University of Ireland)
  • LL.M., Master of Laws (National University of Ireland)
  • T.E.P., Trust and Estate Practitioner qualification
  •  Dip. Comm., Diploma in Commercial Conveyancing
  • Cian is currently reading for the Associateship of the Institute of Taxation of Ireland Exams.

Professional Memberships

  • Law Society of Ireland
  • Society of Estate and Trust Practitioners in Ireland
  • Institute of Taxation of Ireland.

Cian O'Sullivan

Senior Associate

Cian is a Senior Associate in MH & C Private, the specialist private client department of Mason Hayes & Curran. Cian joined the firm in April 2007 having previously worked in a leading private client practice as head of private client services.

Cian joins MH & C Private with over 10 years experience in dealing with all aspects of private client services to include:

Areas of Expertise:

  • tax efficient estate planning for Irish residents and non-residents;
  • wills, probate and administration of estates;
  • advising on and implementing various wealth protection structures
  • tax efficient conveyancing used to control the devolution of wealth particularly between families.; and
  • advising corporate and private trustees in relation to the administration and winding up of trusts

Representative Matters:

  • Cian acts for a large number of medium to high net worth business people, entrepreneurs and professionals and their families and offers practical and tax efficient solutions tailored towards individuals’ specific needs.
  • Cian has published numerous articles in relation to trusts and wealth management, succession and taxation and regularly gives lectures on these areas to businesses and other professional practices.

photo of Cian O'Sullivan
Cian O'Sullivan

Contact Information

t: +353 1 6145085
f: +353 1 614 5001
m: +353 86 601 9307
e: cosullivan@mhc.ie

button: download v-card

Contact Us

  • Ireland

    t +353 1 614 5000
    f +353 1 614 5001
    e mail@mhc.ie

    South Bank House,
    Barrow Street,
    Dublin 4 Ireland.

  • UK

    t +44 20 3178 3368
    f +44 20 3178 3367
    e mail@mhcldn.com

    60 Lombard Street,
    London EC3V 9EA,
    UK.

  • USA

    t +1 212 786 7376
    f +1 212 786 7316
    e mail@mhcny.com

    330 Madison Avenue,6th Floor,
    New York NY 10017 ,
    USA.