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C-Suite COO

S Dawn Mobley

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At 25, Dawn Mobley was the Supervisor of Administration and Training at a nuclear power plant. It was in these early years that Dawn learned that a business could only achieve stability and scalability if it had a strong foundation to build upon, so she began developing and implementing systems, procedures and resources for her teams that would allow them to operate with clarity and efficiency. Before moving on, Dawn earned company performance awards for significant backlog reductions and significant process improvements.

Over the next 20 years, Dawn worked with large corporations, mid-sized companies, small businesses and entrepreneurs. She has provided support in the areas of Human Resources, Training and Development, Marketing, Operations, Process Improvement, Project Management, Sales and Coaching. While Dawn appreciates the knowledge and experience she has gained in Corporate America, she prefers working with entrepreneurs because they have the ability to quickly implement changes that can transform their businesses into money-making machines much faster than large organizations.

It was while working with a local Estate Planning attorney wanting to sell his struggling practice, that Dawn found her niche. She enjoyed helping the attorney build and grow his law business so much that she knew she wanted to focus on helping other small law firms and solopreneurs reach their personal, professional and financial goals.

When the local law office sold, Dawn continued to work with lawyers virtually. Through the years, Dawn has helped hundreds of lawyers implement systems, increase their sales, improve their marketing, get in touch with their numbers and achieve breakthroughs. She is thrilled to be a part of How to Manage a Small Law Firm and is looking forward to helping our members take their businesses to 11.

Dawn lives in Central Illinois with her husband and her furry babies, Ava (a yellow lab) and Loki (a black lab). She has four kids and one grandson who frequently visit for home-cooked meals and competitive board gaming. In addition to cooking, Dawn loves writing, sewing and DIY projects.

Chris Warren

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Chris Warren is an accomplished executive and strategic operator with a career built on scaling organizations, optimizing operations, and driving consistent profitability across multiple industries. As a CEO and COO Advisor with HTM, Chris partners with law firm owners to build the structure, systems, and strategic clarity required to run their firms like true CEOs — not just lawyers who happen to own a business.
Drawing from over two decades in senior leadership roles including CEO, COO, and President, Chris has led teams through transformational growth, multimillion-dollar capital expansions, and complex operational turnarounds. His background spans SaaS, franchising, and professional-services organizations, where he’s built performance frameworks, leadership pipelines, and data-driven decision systems that unlock both efficiency and freedom for business owners.
Chris’s executive experience includes leading national franchise networks, managing global finance portfolios exceeding $90 billion, and architecting scalable operating systems that align teams around measurable KPIs and accountability. At HTM, he applies that same CEO-level discipline to help law firm owners clarify their vision, strengthen their leadership, and grow sustainable, profitable firms that don’t rely on them to function day-to-day.
Outside of advising law firms, Chris enjoys offshore fishing, barbecuing for friends and family, and cheering on the Florida Gators. Whether he’s navigating complex business systems or open waters, he brings the same energy and precision to everything he does.

Lori McCallian

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Lori has held a variety of positions including Owner, COO, and Vice President of Operations, and has previously been in executive positions within the music, accounting, insurance, and consulting industries. She has been responsible for strategically streamlining and scaling operations, building high performing teams, creative problem solving, and delivering excellent client service. Lori is most proud of resurrecting the operations of a 50-year-old legacy brand in the music industry, in addition to successfully launching a new location of an accounting firm from scratch. Lori has 25 years of operations and finance experience and has earned an MBA from Washington University in St Louis.
In her spare time, Lori enjoys reading, baking, hiking, and Pilates. She also enjoys traveling to visit family and friends in the Midwest and spending time in her favorite International city, Paris.

David Lester-Massey

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David has held a variety of positions including Chief Operating Officer, Sr. Financial Management Analyst, and public health advocate. He was previously with the Centers for Disease Control and Prevention (CDC) as a Sr. Financial Management Analyst and Program Manager, where he was responsible for managing complex budgets, leading strategic financial planning efforts, and ensuring fiscal accountability across high-impact federal programs. David has also served as Chief Operating Officer at Hiclass Management, where he oversees business operations, client engagement, and organizational strategy—supporting mental health professionals with customized management solutions. David is most proud of his leadership in expanding access to financial and operational resources for small and minority-owned firms, as well as his continued advocacy for people living with HIV. He holds a Master of Business Administration and brings over a decade of experience in financial management, operations, and public sector consulting.
In their spare time, David enjoys binge watching television and streaming services as well as providing Vocal Training and Musical Direction for choirs and singers nationwide.

Frank Caliva

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Frank Caliva helps law firm owners take control of their business, their time, and their money. He draws on years of experience as a COO and CAO in the private sector (financial services), the not-for-profit sector (regional economic development/business leadership), and the government sector (a mid-size city).
Frank has a degree in economics and began his career as a consultant for high-growth community banks. In his most recent position as Chief Administrative Officer for the City of Syracuse, Frank led a portfolio that included Strategy, Technology, Finance, Budget, and Human Resources. During his tenure the city undertook updates and investments in administrative infrastructure for the first time in four decades. Frank is most proud of the results-oriented culture his team at City Hall established on behalf of taxpayers.
In his spare time, Frank is a volunteer mediator for small claims and family disputes. He enjoys photography, live and recorded music, antiquing, and spending time in the Adirondacks with his wife, children, and grandchildren.

Charles Chronis

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Chuck has extensive experience as an operations leader and c-suite advisor in both the Legal Services and Financial Services industries.

He has held a variety of leadership positions including Chief Operating Officer for a large personal-injury law firm where he was responsible for operational execution in Marketing, Sales, Case Management from intake to settlement, Financial Controls, Information Technology, and Human Resources.

Previously, Chuck was a managing consultant for both Big-4 and boutique advisory firms where he advised C-suite clients in the Financial Services industry on executing transformational changes across people, process, and technology.

Originally from Boston, MA, Chuck has lived in several states through New England and the Midwest. He now resides in Charlotte, NC.