Often, matters like this can be resolved with a phone call. However, if after discussing your assessment with your local taxing authority you still feel as though your property was overvalued, a professional, independent, third-party appraiser is often your best bet in proving your case. 

There are as many different procedures for appealing assessments as there are property taxing districts, so it's important to enlist the help of a professional appraisal firm that's experienced and trained in your particular jurisdiction. 

It makes sense to do your own research before determining whether to go forward with a property assessment appeal. When you hire an appraiser for an assessment appeal, you're commissioning  an independent, third-party for a professional appraisal report. As such we do our own evaluation, beginning to end. If you're right that your property has been overvalued, an independent report such as ours will be even more persuasive than any other evidence you can marshal on your own.