(918) 716-1600Hours: 8 a.m. to 6 p.m.

Brent Watson, CPA


Brent has thirty years of practice in sales tax, property tax, and tax incentive programs. Throughout his career, Brent has specialized in building systems of compliance and working with clients to educate personnel to simplify and improve sales tax processes and in building rapport with taxing authorities to effectively resolve tax issues on behalf of clients in Arkansas, Oklahoma, and Texas.

He launched the non-income tax group at Tyson Foods in 1990, then led that group for ten years. Brent has thirteen years of experience as a consultant and has extensive experience in the manufacturing, oil and gas, construction, and multi-state retailing industries. Brent has served as a speaker and instructor for many organizations including the Oklahoma Society of CPAs, COPAS, Institute for Professionals in Taxation, and Lorman Educational Service.  Additionally, Brent has authored numerous articles for the OSCPA Focus and COPAS Accounts magazines.

Brent is a member of the Institute for Professionals in Taxation, Oklahoma Society of Certified Public Accountants, and the Tulsa Chapter of the Oklahoma Society.

Haven Willis, CMI


Haven has 32 years of experience in sales and use tax matters, including 31 years with the Illinois Department of Revenue, auditing for sales tax and business income tax.  She conducted well over 500 highly complex audits of multi-national corporations and partnerships.  Each of these audits involved unique tax managers and required navigation of unique accounting systems.

Haven’s extensive knowledge and leadership in applying tax law, accounting, and audit methodology (including statistical sampling techniques), as well as her respectful treatment of auditors, combine to enable her to provide great representation to clients who are under audit.  Additionally, Haven has strong research skills to assist clients with taxability research.

Since joining SALTA in 2018, Haven has served clients with tax recovery projects, audit coordination, compliance reviews, voluntary disclosures, state tax registrations, tax research, sales tax return preparation and reviews, due diligence and tax planning.  Haven has recently earned the designation of CMI with the Institute for Professionals in Taxation, signifying her expertise in sales and use taxation.

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