Trade mark basics Paul Brennan is the principal of Brennans Solicitors, a law firm located on the Sunshine Coast, Queensland, Australia, where he practices with his wife, Diane in the areas of business law, litigation, property and wills/estates. Over the years, by working in various countries, he noticed how similar the law can be. He set out to explain the law in a simple and often humorous way. He has written several books about law and lawyers. Further details of his profile can be found on Linkedin.