Kersten has worked in Property Management and Auctioneering in the Limerick region since 1978 spending his first 8 years working exclusively in Property Management and then worked with several prominent Limerick City auctioneers. In this capacity, he was involved with the selling of many new residential schemes and also achieved a number of very significant sales in the existing residential market. Chief among his many responsibilities was the continued management of various city properties for clients.
In 2010/2011 Kersten served as the President of the Irish Auctioneers and Valuers Institute (IAVI) and oversaw the merger between the IAVI and the Society of Chartered Surveyors (SCS) and the establishment of The Society of Chartered Surveyors Ireland, where he served as Joint President. For more information on the SCSI.
Kersten is currently on the National Council of the The Society of Chartered Surveyors Ireland