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Our Mission


At LCS, our mission is simple: treat clients the way we want to be treated and deliver exceptional work with efficiency and precision. We thrive under pressure and turn numbers into narrative.™ At LCS, we go beyond the numbers—we deliver insights, solutions, and unwavering support in every engagement.

Who We Are

Founded in 2012, LCS is a Certified Public Accounting firm specializing in buy-side and sell-side M&A financial and tax due diligence, accounting services, fractional CFO services, and forensic accounting and expert witness services.

Who We Serve


We are trusted advisors to business buyers, sellers, capital providers, intermediaries, and attorneys, providing expert guidance on complex accounting challenges for confident decision-making.

Meet Our Team

Max Lummis CPA, CVA, CFE
Max Lummis
CPA, CVA, CFE

Founder & Managing Shareholder
 

Tel: 713-224-5914

Houston, TX Office

Email: mlummis@lcsfirm.com

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Olya Lumelleau
CPA

Principal & Shareholder

Tel: 713-224-5914

Houston, TX Office

Email: olumelleau@lcsfirm.com

Brandy Lummis CFE
Brandy Lummis
CFE

CFO & Shareholder

Tel: 713-224-5914

Houston, TX Office

Email: blummis@lcsfirm.com

Travis Sadler CPA, CFE, MBA
Travis Sadler
CPA, CFE, MBA

Principal & Shareholder

Tel: 713-224-5914

Denver, CO Office

Email: tsadler@lcsfirm.com

Todd Moser,  CPA
Todd Moser, 
CPA

Principal, Fractional CFO Services

Tel: 713-224-5914

Houston, TX Office

Email: tmoser@lcsfirm.com

Timothy Zimet, CPA
Timothy Zimet,
CPA

Manager 

Tel: 713-224-5914

Miami, FL Office

Email: tzimet@lcsfirm.com

Rabiga Baimukhametova
Rabiga Baimukhametova

Senior Associate

Tel: 713-224-5914

Houston, TX Office

Email: rabiga@lcsfirm.com

Clark Crookston
Clark
Crookston

Associate

Tel: 713-224-5914

Houston, TX Office

Email: ccrookston@lcsfirm.com

Dave Bourgoin
Dave
Bourgoin

Director of Business Development

Tel: 713-224-5914

Dallas, TX Office

Email: dbourgoin@lcsfirm.com

Dennis Irwin CPA

LinkedIn

Dennis Irwin
CPA

Principal, Tax Advisory 

Tel: 713-224-5914

Houston, TX Office

Email: dirwin@lcsfirm.com

Jonathan Werst CPA
Jonathan
Werst
CPA

Senior Associate

Tel: 713-224-5914

Dallas, TX Office

Email: jwerst@lcsfirm.com

Amanda Szydlik
Amanda Szydlik

Manager, Accounting Services

Tel: 713-224-5914

Houston, TX Office

Email: aszydlik@lcsfirm.com

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