I am an accountant. Although I may know a thing or two about valuations of property, I could never be qualified as a witness when it comes to valuations. There are qualifications that must be met and my accounting degree is not one of them.
My law firm represents many municipalities when sued to contest the real property tax. Both sides must submit an appraisal prepared by an appraiser licensed by the state. The educational and licensing requirements are rigorous. And yet, two highly qualified appraisers often submit appraisals for the same property that differ by millions of dollars. Neither is lying or committing fraud; rather, they have legitimately reached different conclusions based upon the many subjective variables that are inherent to any appraisal.