I just received my county property value assessment and they raised the value 50K over last year and want an additional $600 in taxes this year.
I have until 1 June to dispute it.

I purchased the property in November 2013 and the VA Assessment came in well over what I paid for it.
The county now says it's worth 75K more than the assessment.

Has anyone filed a dispute with the county?
I have never done this and just wanted to try to get some info on how it's done successfully.

I do not plan on selling the property, so I'd like to save some money on taxes and have the County's value lowered.
I'm also researching other options to lower the taxes through Ag exemptions and such.