Eamonn M. O’Beirne

Managing Partner

Is the senior and founding partner of Cullen Tyrrell & O’Beirne. Eamonn studied in UCD and qualified as a solicitor in 1973. Eamonn heads up the firm’s probate, banking and property departments and he acts for a wide range of private and institutional clients.

He has significant experience in the area of landlord and tenant law and the acquisition and disposal of commercial and retail property. He also advises on the legal issues surrounding secured and unsecured financial transactions.

Edward John O’Beirne


Is a graduate of NUI Maynooth and DIT Aungier Street and was admitted to the roll solicitors in 2006. Edward deals in all aspects of the practice with an emphasis on elements of residential and commercial property, commercial litigation, mediation and commercial disputes.

He has built up a large portfolio of clients from both private and company backgrounds by dealing with every issue on a personal basis. In his role as Partner, Edward is overseeing the continued growth and development of the firm. Edward is also an accredited mediator and a member of the Wicklow Solicitors Bar Association.

Donnacha O’Donovan


Donnacha is a graduate of University College, Cork and qualified as a solicitor in 1994.

Donnacha advises companies and other businesses in the SME sector. He has broad experience of drafting and reviewing contracts including distribution agreements, confidentiality agreements and security documentation.

Donnacha has extensive experience of all aspects of commercial litigation including contractual disputes, litigation between shareholders and professional indemnity litigation. He has been representing clients before the Commercial Court since that court was established in 2004 and has extensive experience in the use mediation as a means of achieving settlements for clients. He has advised in a number of high value shareholder disputes including shareholder oppression actions. He has represented financial institutions including advising in contested bankruptcy and personal insolvency actions for a number of years.

Donnacha is a member of the Law Society and a member of the Dublin Solicitors Bar Association.

Robert Lennon


Robert is a graduate of Griffith College Dublin, he qualified as a barrister in the Michaelmas term of 2008 and has qualified as a solicitor as of January 2021.

During his two years practicing at the Bar, he acquired substantial experience making a wide range of applications and attending to court hearings, as well as researching various areas of law, providing detailed legal opinions which have often been of great benefit to fellow Counsel, as well as possessing hands on experience negotiating agreements with other lawyers.

He spent several years working in various leading financial institutions including Bank of Ireland as a Legal Executive for many years and he was deeply involved in many projects and acquisitions over the years and has often helped improve and design processes and procedures in these areas,

As such he has an extensive knowledge of securities and insight into banking practises and procedures 

Overall, he has a wide range of knowledge and experience combining the experiences and skills obtained through these very different but often intersecting backgrounds 

He has worked on in various legal areas such as employment law, personal injury, legal research, criminal practice. planning law, probate law, drafting and various civil proceedings. He also qualified as a Mediator with the mediation forum of Ireland in 2014. 

He thus has significant experience in the both the Court room and in the office.