Alan Froggatt, the former European chief executive of CB Richard Ellis, is being threatened with legal action.
Project management company Trident Building Consultancy has instructed Olswang to write to Froggatt and the three other directors of a new property consultancy that he will chair.
Froggatt announced last month that he had become chairman of a new property consultancy, called Trident Corporate Real Estate.
The 30-strong firm was formed out of the merger of Peter Boros’s CPM Consulting, Mike Pritchard’s Commercial Relocation Consultants and Keith Martindale’s Martindale CRE.
It said that Froggatt’s use of Trident would cause it substantial damage for which it would be entitled to compensation. It has written to the group, asking it to stop using the name or face legal proceedings.