Our Team
Meet Our Team of Experienced Professionals
Our professionals have the experience and a results-driven focus to help you navigate through the treacherous tax and financial environment we live in today. The tax rules and laws are changing rapidly and with our entrepreneurial team of Certified Public Accountants, Certified Fraud Examiners, Enrolled Agents and more, we can help you keep up and come out ahead.

Our Team

John Thayer
Managing Partner

John Thayer
John is an accomplished Tax Partner with 40+ years’ experience. He personally oversees the preparation of over 1500 annual tax returns.
John received his Bachelor of Business of Administration Degree from the University of Houston where he is an active alumnus.
Areas of Expertise
- Tax Returns
- IRS Audit & Negotiations
- Public & Private Accounting
- Corporate Finance
- Mergers & Acquisitions
- Medical Practices
- Business Valuations
- Bankruptcy Proceedings
- Litigation Support & Expert Testimony
- Buy & Sell Agreements
- Estate & Gift Tax

Anika Dickinson
Tax Partner

Cason Peters
Tax Partner

Curt Vaculik
Enrolled Agent

Curt Vaculik
Curt is an accomplished tax partner with 15 years of professional experience with strong expertise in healthcare, construction, and real estate.
He graduated from the University of Houston with a BBA in Accounting in 2003. Contact him today to discover what his extensive knowledge can do for you.
Areas of Expertise
- Income tax planning
- Income tax preparation
- Choice of entity and business structure planning
- Tax minimization and credit strategies
- Business purchase, sale, or mergers
- Sale or purchase of real property
- Property exchanges
- Lease/Buy analysis
- Financing alternatives
- International issues
- Consolidated returns
- Tax credits (R & D, work opportunity, earned income, foreign, etc
- Payroll, property and sales tax issues
- IRS audit representation
- Estate & Gift Tax

Liz Hochstein
Controller

Jodi White
Director of Business Development

Mark Heffner
Manager, Financial Advisory Services

Claire Burditt
Human Resources

Terry Sherrill
Managing Director, Financial Advisory Services

Mark Mata
Senior Financial Advisory Services Associate



Jose Pena
CPA.
CPA in Texas, Venezuela and Colombia, bilingual (English-Spanish) with international Public Accounting experience. Proven and comprehensive experience in audits and business advisory role in Energy, Services, Healthcare, Construction, Real Estate, Manufacturing, and Distribution audits. Broad range of achievements as a Big Four Professional Services Partner in a highly competitive, change intensive environment. Resourceful leader with a strong balance between technical proficiency, business objectives, strategic vision and organizational and staff development.
Extensive expertise in all key aspects of financial management including: auditing, accounting & risk assessment, financial reporting & analysis, performance & profit improvement, accounting systems & internal control, business opportunity assessments, IPO, reverser mergers & regulatory/SEC compliance, and International Financial Reporting Standards (“IFRS”).
Specialties:
IFRS experience, SOX 404 compliance,Accounting for Foreign Currency, Income Taxes, Impairment of Long Live Assets, Stock Based Compensation.


Faisal Siddiqui
CPA.
Faisal Siddiqui boasts over 18 years of professional experience, including his tenure at Big Four accounting firms and his involvement in audit inspections with PCAOB. His extensive background encompasses leading both International and Domestic engagements. These engagements range from Emerging Growth Companies to Fortune 500 enterprises, where he has guided companies through IPOs, evaluated and implemented Internal Control Environments, and assessed Audit Quality & Remediation. With a history of service across various industries such as oil & gas, manufacturing, hospitality, utility & power generation, home building, information technology, construction, and private equity funds & brokerage enterprises, Faisal Siddiqui possesses an unparalleled wealth of diverse technical knowledge and experience. His impressive portfolio encompasses clients from both the privately held and publicly-traded realms. No task is deemed too small or too large; feel free to reach out to him at any time to discover solutions tailored to your needs.
Areas of Expertise
- Public and Private Accounting
- External and Internal Auditing
- Internal Control Auditing
- Implementation of COSO Framework
- Marketing Research Consultation
- Financial Analysis
- Assessment and Consultation on Audit Quality
- Consultation for Remediation
- Consultation on PCAOB Comment Forms





Karen Watson
Audit Operations.
Karen joined the firm’s audit staff in July 2018. Karen graduated from Abertay University in Scotland. She moved to Houston in 2003 and was company administrator at 2 other companies prior to joining TPS Thayer. Karen’s responsibilities focus on performing audit and preparing reports for public and private companies.
Our Team

John Thayer
Managing Partner

John Thayer
John is an accomplished Tax Partner with 40+ years’ experience. He personally oversees the preparation of over 1500 annual tax returns.
John received his Bachelor of Business of Administration Degree from the University of Houston where he is an active alumnus.
Areas of Expertise
- Tax Returns
- IRS Audit & Negotiations
- Public & Private Accounting
- Corporate Finance
- Mergers & Acquisitions
- Medical Practices
- Business Valuations
- Bankruptcy Proceedings
- Litigation Support & Expert Testimony
- Buy & Sell Agreements
- Estate & Gift Tax

Anika Dickinson
Tax Partner

Cason Peters
Tax Partner

Curt Vaculik
Enrolled Agent

Curt Vaculik
Curt is an accomplished tax partner with 15 years of professional experience with strong expertise in healthcare, construction, and real estate.
He graduated from the University of Houston with a BBA in Accounting in 2003. Contact him today to discover what his extensive knowledge can do for you.
Areas of Expertise
- Income tax planning
- Income tax preparation
- Choice of entity and business structure planning
- Tax minimization and credit strategies
- Business purchase, sale, or mergers
- Sale or purchase of real property
- Property exchanges
- Lease/Buy analysis
- Financing alternatives
- International issues
- Consolidated returns
- Tax credits (R & D, work opportunity, earned income, foreign, etc
- Payroll, property and sales tax issues
- IRS audit representation
- Estate & Gift Tax

Liz Hochstein
Controller

Jodi White
Director of Business Development

Claire Burditt
Human Resources

Terry Sherrill
Managing Director, Financial Advisory Services

Mark Mata
Senior Financial Advisory Services Associate

Thomas Rand
Tax Manager

Mark Heffner
Manager, Financial Advisory Services


Jose Pena
CPA.
CPA in Texas, Venezuela and Colombia, bilingual (English-Spanish) with international Public Accounting experience. Proven and comprehensive experience in audits and business advisory role in Energy, Services, Healthcare, Construction, Real Estate, Manufacturing, and Distribution audits. Broad range of achievements as a Big Four Professional Services Partner in a highly competitive, change intensive environment. Resourceful leader with a strong balance between technical proficiency, business objectives, strategic vision and organizational and staff development.
Extensive expertise in all key aspects of financial management including: auditing, accounting & risk assessment, financial reporting & analysis, performance & profit improvement, accounting systems & internal control, business opportunity assessments, IPO, reverser mergers & regulatory/SEC compliance, and International Financial Reporting Standards (“IFRS”).
Specialties:
IFRS experience, SOX 404 compliance,Accounting for Foreign Currency, Income Taxes, Impairment of Long Live Assets, Stock Based Compensation.


Faisal Siddiqui
CPA.
Faisal Siddiqui boasts over 18 years of professional experience, including his tenure at Big Four accounting firms and his involvement in audit inspections with PCAOB. His extensive background encompasses leading both International and Domestic engagements. These engagements range from Emerging Growth Companies to Fortune 500 enterprises, where he has guided companies through IPOs, evaluated and implemented Internal Control Environments, and assessed Audit Quality & Remediation. With a history of service across various industries such as oil & gas, manufacturing, hospitality, utility & power generation, home building, information technology, construction, and private equity funds & brokerage enterprises, Faisal Siddiqui possesses an unparalleled wealth of diverse technical knowledge and experience. His impressive portfolio encompasses clients from both the privately held and publicly-traded realms. No task is deemed too small or too large; feel free to reach out to him at any time to discover solutions tailored to your needs.
Areas of Expertise
- Public and Private Accounting
- External and Internal Auditing
- Internal Control Auditing
- Implementation of COSO Framework
- Marketing Research Consultation
- Financial Analysis
- Assessment and Consultation on Audit Quality
- Consultation for Remediation
- Consultation on PCAOB Comment Forms





Karen Watson
Audit Operations.
Karen joined the firm’s audit staff in July 2018. Karen graduated from Abertay University in Scotland. She moved to Houston in 2003 and was company administrator at 2 other companies prior to joining TPS Thayer. Karen’s responsibilities focus on performing audit and preparing reports for public and private companies.