Meet the Staff

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Kulli Kask is a CPA and has been with Cooper Arias, LLP since 2008.She graduated Summa Cum Laude from SUNY New Paltz and has over 20 years of corporate and personal accounting experience.Kulli also has an MS/MA in Engineering from the Tallinn Polytechnic Institute in Estonia.To contact Kulli, please call 845-796-1800 ext. 317 or send an email to kkask@cooperarias.com


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Dianne Walzer is a CPA and has been with Cooper Arias, LLP since 2010. She earned her Bachelor of Science in Accounting from SUNY New Paltz.

To contact Dianne, please call 845-796-1800 ext. 316 or send an email to dwalzer@cooperarias.com


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Danielle Fratto is a Tax Supervisor and works out of our Middletown and Mongaup Valley offices. She has a Bachelor of Business Administration from Pace University and has been with Cooper Arias, LLP since 2008.

To contact Danielle, please call 845-343-2215 or send an email to dfratto@cooperarias.com



Margaret Quimby is an Audit Manager at Cooper Arias, LLP. She earned her Bachelor of Science in Accounting from SUNY New Paltz and has been with the firm since 2005. Margaret is also a member of the New York State Society of Certified Public Accountants.

To Contact Margaret, please call 845-796-1800 ext. 310 or send an email to mquimby@cooperarias.com