WTAS, the US-based tax firm, has appointed Ross Nager as a managing director in its national tax office division.

Nager worked at Arthur Andersen’s for 25 years in the high-net-worth family services team. He formed the family wealth planning practice at the firm, and served as global managing director of the unit. He was also an executive director of the firm’s Center for Family Business. After leaving Andersen, Nager spent nine years at Sentinel Trust Company, and will continue this association.

In his new role he will responsible for disseminating technical developments, such as those related to the Internal Revenue Service, to the rest of the firm.

"As WTAS grows, we understand the need to support our tax professionals across the country with information on IRS developments, judicial decisions and timely strategic advice. Ross will join our NTO to serve as yet another national technical resource for our private client services team," said Mark Vorsatz, chief executive of WTAS.

WTAS has offices covering Baltimore, Boston, Chicago, Greenwich, Harrisburg, Los Angeles, New Jersey, New York City, Palo Alto, Philadelphia, San Francisco, Seattle, Washington, DC, and West Palm Beach.