Arlington County, Virginia Executive and Leadership Team

August, 2026

Leadership Overview

Arlington County Government has 8 executives leading key functions including finance, information technology, operations, and administration.

Dedicated to serving its residents, Arlington County, Virginia provides essential local services, facilitates online bill payments, and disseminates vital community news, driving civic engagement and operational efficiency.

Leadership Roles at Arlington County, Virginia

  • Chief Financial Officer - Michelle Cowan
  • Director, Management and Finance. Chief Financial Officer - Maria Meredith
  • Deputy Chief Financial Officer - Michael Stewart
  • Division Chief Operating Officer, County Public Health (Arlington) - Robert Sharpe
  • Chief Operating Officer & Deputy Chief Information Officer - Laura Szlavin-Niamien
  • Chief Information Officer - Holly Hartell
  • Chief of Staff & Manager, Office of The County - Lynne Porfiri
  • Chief Administrative Officer - Cynthia Hernan
  • Michelle Cowan - Chief Financial Officer

    Michelle Cowan, the Chief Financial Officer at Arlington County Government, directs the county's fiscal operations and financial planning. Overseeing budget development and execution, Cowan ensures the responsible allocation of public funds across all county departments. This leadership role involves managing financial reporting, investment strategies, and revenue collection to maintain the county's financial health. By implementing robust financial controls, Michelle Cowan safeguards taxpayer money and supports long-term economic stability for Arlington. The Chief Financial Officer's strategic guidance is critical for sustainable service delivery and capital improvement projects, ensuring fiscal integrity in all governmental activities.

    Maria Meredith - Director, Management and Finance. Chief Financial Officer

    Maria Meredith, the Director, Management and Finance. Chief Financial Officer at Arlington County Government, manages critical financial and administrative functions. Overseeing departmental budgets and financial reporting, Meredith ensures compliance with fiscal regulations and supports strategic financial planning. This position involves coordinating management initiatives and financial oversight to optimize resource utilization across county operations. By directing financial processes, Maria Meredith contributes to the county's overall fiscal stability and operational effectiveness. The Director's dual focus on management and finance provides essential support for the county's administrative and budgetary objectives.

    Michael Stewart - Deputy Chief Financial Officer

    Michael Stewart, the Deputy Chief Financial Officer at Arlington County Government, supports the Chief Financial Officer in managing the county's financial landscape. Overseeing specific financial operations and analysis, Stewart ensures accuracy in reporting and compliance with fiscal policies. This role involves assisting with budget preparation, financial forecasting, and the implementation of financial management systems. By providing critical support to the CFO, Michael Stewart enhances the efficiency and integrity of county financial practices. The Deputy Chief Financial Officer's contributions are vital for maintaining sound fiscal management and supporting the county's economic objectives.

    Robert Sharpe - Division Chief Operating Officer, County Public Health (Arlington)

    Robert Sharpe, the Division Chief Operating Officer, County Public Health (Arlington) at Arlington County Government, directs operational strategies for public health services. Overseeing the execution of health programs and initiatives, Sharpe ensures efficient service delivery to the Arlington community. This leadership position involves managing resources, optimizing workflows, and ensuring compliance with health regulations. By driving operational excellence, Robert Sharpe enhances the effectiveness and reach of county public health initiatives. The Division Chief Operating Officer's focus on operational efficiency is crucial for delivering vital health services and improving community well-being.

    Laura Szlavin-Niamien - Chief Operating Officer & Deputy Chief Information Officer

    Laura Szlavin-Niamien, the Chief Operating Officer & Deputy Chief Information Officer at Arlington County Government, drives operational efficiency and technological integration across county services. Overseeing critical operational functions and supporting IT strategy, Szlavin-Niamien ensures seamless service delivery and system performance. This dual role involves managing day-to-day operations while contributing to the county's digital transformation efforts. By optimizing operational processes and leveraging technology, Laura Szlavin-Niamien enhances government effectiveness and resident experience. The Chief Operating Officer's focus on operational excellence and IT synergy is vital for modernizing county infrastructure.

    Holly Hartell - Chief Information Officer

    Holly Hartell, the Chief Information Officer at Arlington County Government, architects the county's technology strategy and digital infrastructure. Overseeing all information technology services, Hartell drives innovation in digital service delivery for residents and internal operations. This role involves managing cybersecurity initiatives, data management, and the implementation of new technological solutions to enhance efficiency and accessibility. By ensuring robust IT systems, Holly Hartell supports the county's mission to provide seamless online services and secure data. The Chief Information Officer's leadership is essential for modernizing government operations and improving citizen engagement through technology.

    Lynne Porfiri - Chief of Staff & Manager, Office of The County

    Lynne Porfiri, the Chief of Staff & Manager, Office of The County at Arlington County Government, provides strategic leadership and operational oversight for the County Manager's office. Overseeing key initiatives and interdepartmental coordination, Porfiri ensures alignment with the county's strategic goals. This role involves managing special projects, facilitating communication between departments, and supporting the County Manager's executive functions. By directing critical administrative processes, Lynne Porfiri enhances the efficiency and effectiveness of county governance. The Chief of Staff's comprehensive oversight is essential for driving county-wide objectives and ensuring smooth administrative operations.

    Cynthia Hernan - Chief Administrative Officer

    Cynthia Hernan, the Chief Administrative Officer at Arlington County Government, directs the administrative functions essential for county operations. Overseeing human resources, procurement, and facilities management, Hernan ensures efficient resource allocation and compliance with administrative policies. This leadership role involves developing and implementing strategies to enhance organizational effectiveness and employee support. By managing key administrative departments, Cynthia Hernan contributes to the smooth functioning of the county government. The Chief Administrative Officer's oversight is critical for maintaining operational integrity and supporting the county's workforce and infrastructure.

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    Frequently Asked Questions Regarding Arlington County, Virginia Top Executives and Leadership Team

    Who leads Arlington County, Virginia?
    Arlington County, Virginia is led by Michelle Cowan (Chief Financial Officer), along with executives such as Maria Meredith (Director, Management and Finance. Chief Financial Officer) and Michael Stewart (Deputy Chief Financial Officer).
    Who is part of Arlington County, Virginia’s executive team?
    The executive team of Arlington County, Virginia includes leaders such as Michelle Cowan (Chief Financial Officer), Maria Meredith (Director, Management and Finance. Chief Financial Officer), Michael Stewart (Deputy Chief Financial Officer) and other senior executives.
    How many executives does Arlington County, Virginia have?
    Arlington County, Virginia has 8 executives leading key business areas.
    What roles are included in Arlington County, Virginia’s leadership team?
    The leadership team of Arlington County, Virginia includes roles such as Chief Financial Officer, Director, Management and Finance. Chief Financial Officer, Deputy Chief Financial Officer, Division Chief Operating Officer, County Public Health (Arlington), Chief Operating Officer & Deputy Chief Information Officer.