2. Positive reviews for Mackay, Caswell & Callahan, P.C. highlight the expert guidance provided by the tax attorneys at the firm. Customers appreciate the professionalism, honesty, and knowledge displayed by the attorneys in addressing and resolving tax issues, easing their stress during challenging financial times. The attorneys are described as patient, persistent, and easily accessible, providing top-notch legal services and assistance in tax dispute resolution, tax planning, and dealing with back taxes issues efficiently and effectively. 6. Unique facts about Mackay, Caswell & Callahan, P.C. include their central location in Manhattan near prominent landmarks such as the Steven A. Schwarzman Building and the New York Public Library's Morgan Library and Museum. The tax attorneys at the firm have a combined legal and accounting background, with over 35 years of experience in tax law, making them among New York's most respected tax lawyers. 7. Mackay, Caswell & Callahan, P.C. specializes in providing expert legal services in tax dispute resolution, tax planning, and handling serious tax issues for clients in New York City. The firm's tax attorneys, particularly Joseph M. Callahan, Esq., are well-versed in federal and state tax laws and are licensed to practice before the U.S. Tax Court, NYS Courts, and the US District Court. They strive to provide the best representation for clients facing tax problems, ensuring that their tax issues involving the IRS or the NY State Department of Taxation and Finance are resolved effectively.