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Joseph O'Brien has been in practice for over 40 years at KAO where he is Managing Partner. With an LLM in Taxation and a CPA (now inactive) Joe's concentration has always been business and tax related but has developed into the specialization in tax assessment litigation.


John Yanoshak heads up the firm's tax and estate practice. With over 40 years of experience as a CPA and Attorney, John has resolved a variety of business and tax related issues for clients. He is an avid Philadelphia sports fan who takes the Phillies almost as seriously as he does his law practice.

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Chris has developed his practice to be client focused working on a wide range of issues for clients from tax assessments to civil disputes. Chris analyzes each of his clients' files researching every potential solution to their legal concerns.


As a former IRS Senior Estate and Gift Tax Attorney for 20 years, Fred brings a wealth of experience to all IRS and tax related issues for his clients. Fred is also a licensed pilot and active with the Lawyer-Pilot Bar Association.

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