Built to Navigate Complexity

MEET THE TEAM

Michael Grossbach, CEO

Michael Grossbach is the CEO and Principal of AG Tax Services, a second-generation tax and accounting firm serving entrepreneurs, investors, and closely held businesses. Having grown up in the business and trained alongside his father, a former IRS corporate field auditor, Michael developed deep expertise in audit representation, tax risk management, and proactive tax strategy early in his career.

Over the course of his career, Michael has worked with more than 1,000 businesses, guiding entrepreneurs through complex tax, compliance, and structural decisions. Entrepreneurial by nature, he has also participated as a founder and investor in dozens of businesses, bringing a practical, operator-level perspective to his advisory work.

His financial background extends beyond accounting. Michael began trading stock options at age 14 and later spent two years working on Wall Street as a trader, experiences that continue to shape his analytical, market-aware, and risk-focused approach. His practice centers on forward-looking planning, entity structuring, real estate and investment tax strategy, and helping clients make decisions while outcomes can still be influenced.

Michael holds undergraduate degrees in Economics and Finance, with a minor in Art History, from SUNY Albany, and is a federally licensed Enrolled Agent authorized to represent taxpayers before the IRS.

TAX TEAM

Danette Montanaro

Danette Montanaro, EA is an Enrolled Agent with the IRS.  She is the Director of Tax Operations at AG Tax with over 14 years of experience in the tax industry. An Enrolled Agent, she oversees tax preparation, planning, compliance, estimated taxes, and IRS representation. Known for her expertise, attention to detail, and client-focused approach, Danette plays a key role in delivering accurate guidance and practical solutions for individuals and businesses year-round.

Gregory Newman

Gregory Newman, CPA  is a tax preparer at AG Tax Services, specializing in helping clients file their taxes accurately and efficiently. Formerly with a big 4 firm specializing in Real Estate.  He works with business clients on tax strategy. Gregory works to ensure clients get the best possible results on their tax returns.  

Michael DeNoia

Michael DeNoia, is an Enrolled Agent with the IRS who is an experienced accounting professional with 14 years of expertise in personal and business accounting. He takes pride in delivering reliable, client-focused service. Mike helps individuals and businesses navigate their financial needs with confidence. A cigar aficionado at heart, Mike believes both fine accounting and fine cigars require patience, precision, and attention to detail.

Philip Ginter

Philip Ginter, EA is an Enrolled Agent with the IRS who began his tax career specializing in Federal R&D Tax Credits and Incentives. At AG Tax Services, Philip plays a key role in supporting tax preparation processes, ensuring accuracy and efficiency.

Stephanie Rosario

Stephanie Rosario is a tax preparer and Master’s of Accounting student, actively pursuing CPA licensure, and contributes to the preparation of accurate and compliant client tax returns.

ACCOUNTING TEAM

Susan Marandi

Susan Marandi, CPA  oversees bookkeeping operations, financial reporting, and sales tax compliance for the firm. She leads the accounting function to ensure accurate records, efficient processes, and compliance. She also supports many clients' tax preparation.

Sandra Uram

Sandra Uram, CPA specializes in accounting and complex financial reporting, bringing over 16 years of professional experience delivering accurate, reliable financial insight for clients.

Scott Pettit

Scott Pettit is a Payroll Tax Accountant with over 9 years of experience, providing support with AG Tax payroll services, ensuring accuracy, compliance, and timely reporting.

Deepak Nayer

Deepak Nayer is a member of the accounting department with a strong focus on bookkeeping, and tax return preparation. Known for his attention to detail and commitment to accuracy, he ensures transparent financial records while supporting compliance and efficiency across client and firm operations.

MANAGEMENT & ADMINISTRATIVE TEAM

Roisin McEnroe

Roisin McEnroe is the Operations Manager, providing high-level operational and administrative support to ensure efficient day-to-day firm operations. She has successfully run multiple businesse over a 12 year period including a property management company, bringing hands-on operational expertise to the firm. Renowned for her ability to work seamlessly with both clients and team members, she combines firm-level operational expertise with exceptional client-facing communication skills.

Debbie Correa-Barry

Debbie Correa-Barry has over 20 years of experience in customer service.  Deborah has honed a deep understanding of client needs and operational efficiency. Currently serving as the back office Administrator at AG Tax Services for the past 7 years, Deborah manages accounts receivable, income tax delivery, and e-filing with precision and attention to detail.

Lindsey Kerins

Lindsey Kerins joins the AG Tax team seasonally, supporting administrative operations to ensure a smooth and efficient tax season. She assists with workflow overflow, tax return delivery and e-filing, and client follow-ups to obtain required information.