Executive, Professional, Legal and Life Coaching. In addition, Silber, Vasquez & Associates offers Marketing courses to aid law firms in building their practices and growing their client base. Silber, Vasquez & Associates works internationally with law firms and legal professionals around the globe, operating in English, Spanish and Portuguese, with over 20 years experience in Life and Business Coaching. Founded and run by Master Coaches Liza Vasquez (Life and Business Coaching) and Jeffrey Silber (Business and Marketing Coaching).