Nassau County: (516) 342-4849
Suffolk County: (631) 302-1940
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Based on 158 reviews

The Tax Grievance Process and How it works.


The Tax Grievance Process – How it works


Nassau Tax Grievance

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“In my opinion the Heller & Clausen Tax Grievance is simply the best group on Long Island when it comes to securing tax reductions. Their unique strategies and performance have resulted in achieving maximum tax savings for their many clients. They have my unqualified recommendation.”

~ George Ross – Executive Vice President – Trump Organization

Adam & his staff handled my grievance claim professionally & answered any questions I had throughout the process. Best of all, I saved $1600 a year from my taxes!

~Lee McAllister

My husband and I are so grateful to the Heller and Clausen Grievance Agency for their consecutive yearly reductions in our taxes. Adam Heller always gets back to us in timely fashion, always has the answers to our questions and is professional. These qualities are what other grievance companies we found lacked in the past. There is no reason to use anyone else!
~Natalie DiGioia & Bryon Knoth
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OMG! I am so excited! Adam Heller just saved me $3874. You guys rock!!! You don’t even know how much that helps me!
~Jeff La Flair II – Ridge NY