We are a National Appraisal Firm, with local offices to serve you. We look forward to hearing from you.

Leon and Brian are the Partners of National Appraisal Consultants, LLC. We were expert witnesses in the Nixon Watergate Presidential Papers Case. We serve as consultants and appraisers for the IRS, US Marshal’s Service, Department of Homeland Security, FBI, US Customs & Border Protection. We provide appraisals and consulting advice for the largest insurance companies in the US. We are trained, tested, and certified appraisers.

We have provided appraisal services for US Presidents, NASA astronauts & moon-walkers, Sports stars, Hollywood celebrities, Members of Congress, and Fortune 100 corporations.

Now you can get our sixty combined years of appraisal experience — the good, the bad, and the ugly – all in one place.

Contact NAC

(908) 459-5996


P.O. Box 482, Hope, NJ 07844

Contact Brian Kathenes

(908) 459-5996


Contact Leon Castner

(484) 973-6008


Contact Karen Murray

(610) 914-4951


You may delay, but time will not. (Ben Franklin)