The only reason anyone in New Jersey would want to appeal their property taxes is if the assessed value was more than their current property value ( as of October 1 of the past year.). Many homeowners at the Jersey Shore are in that exact situation.
In the past 13 years of working in Cape May County I have consulted 100’s of property owners on the issue of appealing their taxes or leave them alone. Most township assessors are willing to look at your assessment if they are approximately 15% higher than the market value. Sometimes they will reduce them with a phone call rather than having many additional property owners go through the tax appeal process. You might be able to have them reduced lower if you go to a hearing but that takes time out of your busy life. You can hire an attorney to represent you at the hearing and that cost usually 1/3 of the amount you save in the first year.
Here are a few resources I have put on my website for you to understand the process. I can help you compile the comparable usable sales to see if this is something you should pursue.
You can contact me to discuss your personal property tax issues at (609)457-0258 anytime from 10am until 5pm daily. Send me a email at firstname.lastname@example.org to set up a time to chat if those times don’t seem to work for you.