Leadership
Our diverse portfolio of performing assets and our senior management team with an average of 28 years industry experience provide an uncommon level of multifamily expertise. That focus on multifamily housing has allowed our management team to develop outstanding skills, insights, and relationships over multiple real estate cycles.
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Dan Byrnes
Chief Executive Officer
Dan Byrnes is the Chief
Executive Officer of Security Properties. He leads the Investment
Committee and is a member of its Board of Managers. Mr. Byrnes has
broad responsibility for strategic planning, growth, and the
financial health of the organization. In addition, he is involved
in all aspects of SP’s business units, including acquisitions,
dispositions, asset management, development, private equity funds
and property operations. Mr. Byrnes has completed over 150
transactions totaling $6 billion since joining Security Properties
in 2012. He previously served as SP’s Chief Investment Officer,
and, prior to that, its Managing Director of Conventional
Investments.
Prior to joining Security Properties, he served as a Director of
Investment Sales in HFF’s New York City office, where he completed
over $4 billion of real estate transactions, spanning all major US
markets and asset types.
Mr. Byrnes serves on the ULI Multifamily Blue Product Council and
is a member of the Policy Advisory Board of the Fisher Center of
Real Estate and Urban Economics at University of California,
Berkeley.
Mr. Byrnes holds a Bachelor’s Degree in Economics-Operations
Research from Columbia University and an MBA from the Haas School
of Business at University of California, Berkeley.
Julie Driscoll
Chief Accounting Officer
Julie Driscoll is the
Chief Accounting Officer at Security Properties where she oversees
financial reporting and day to day accounting functions for a
portfolio of assets over $5 billion. She is a member of the
Investment Committee. Prior to joining Security Properties in 2006,
Ms. Driscoll was part of the real estate finance team at Vulcan
Real Estate. There she worked with joint venture reporting, project
budgeting, commercial property management and a diversified South
Lake Union real estate portfolio from pre-development through
development stages.
Ms. Driscoll began her career in public accounting with RSM
McGladrey where she performed audits and prepared tax returns for a
range of clients from the banking industry to Northwest fishing
boats. She is a graduate of the University of Washington Foster
School Of Business with a Bachelor’s degree in Accounting.
Jason McKinley
Chief Operating Officer
Jason McKinley is the
Chief Operating Officer of Security Properties. He is a member of
the Investment Committee and the Board of Managers. As COO,
Mr. McKinley is broadly responsible for the day-to-day operations
of both Security Properties and its portfolio, including oversight
of property management, asset management, accounting, tax, and
human resources.
In his former role of Managing Director of Asset Management, Mr.
McKinley was responsible for executing the business plan developed
for each property in the Security Properties portfolio, including
renovations, joint venture partner relations, implementation of new
technologies and systems, property management relationships, retail
leasing, and market and data analysis. He also had oversight
responsibility for IT, private capital, and corporate cash
forecasting and reporting.
Mr. McKinley has held a variety of positions at Security Properties
since joining in 2007. He started in the Affordable Housing Group
and later worked as Manager of Corporate Initiatives and Senior
Director of Corporate Finance. During his time in Asset Management,
he oversaw nearly 50 properties with a total of more than 10,000
units, both conventional and affordable. He holds a Bachelor of
Science in Economics with a concentration in Real Estate from the
Wharton School at the University of Pennsylvania and a Master’s in
Real Estate from Harvard’s Graduate School of Design.
Mark Bates
Chief Investment Officer
Mark Bates is the Chief
Investment Officer at Security Properties, joining in 2023 with
extensive experience in institutional multifamily investments and
transactions across the West Coast. He is a member of the
Investment Committee. Before joining SP, Mr. Bates served as Senior
Vice President of Investments with Bell Partners where he led
Western US transactions. Prior to Bell Partners, he held numerous
positions with Holland Partner Group, most recently Executive
Managing Director of Investment Management. At Holland, he was
chair of the company’s Investment Committee and was instrumental in
developing equity partner relationships.
Mr. Bates graduated with honors from the University of California,
Santa Barbara, obtaining a Bachelor of Arts in Business Economics
and Law & Society. Mr. Bates is a CFA Charterholder.
Tali Reiner
Managing Director, Property Management
Tali Reiner is the
Managing Director of Property Management and President of Security
Properties Residential’s 19,000-unit nationwide portfolio. She is a
member of the Investment Committee and the Board of Managers. As
President of SPR, Ms. Reiner is responsible for all facets of
property management nationwide, focusing on operations, risk
management, and value creation
In her previous role as Executive Vice President, Ms. Reiner
contributed to the strategic vision of SPR. She was responsible for
successful day-to-day property management operations, including
oversight of key personnel decisions, company culture, revenue
performance, and strategic growth within target markets. Over her
career, Ms. Reiner has supervised a diverse portfolio spanning 17
states, including lease-ups, value-add, LIHTC/HUD, senior,
mixed-use and conventional housing from garden-style, to mid- and
high-rise. With this experience, Ms. Reiner has been instrumental
in helping SPR and our partners through successful lease-ups,
stabilization, acquisitions and dispositions.
Ms. Reiner has been active in the multifamily housing industry
since 2005 and has maintained a Washington real estate broker
license since 2007. She is a board member of Housing Connector.
Previously she was President of the Washington Multifamily Housing
Association and member of the Washington State Housing Finance
Commission Advisory Board. Through her board involvement, she has
advocated in Washington, DC for thoughtful housing policy and
support of vital housing programs. Ms. Reiner is a graduate of
Randolph College where she received a Bachelor of Arts degree in
History.
Dorian Shapiro
Managing Director, Portfolio Management
Dorian Shapiro is the
Managing Director of Portfolio Management at Security Properties
and a member of the Investment Committee. Mr. Shapiro is
responsible for the company's asset, fund, and construction
management functions.
In his former role of Senior Director of Portfolio Management, Mr.
Shapiro was responsible for the day-to-day operations of SP’s fund
business, including assisting in the structuring, marketing, and
raising of new discretionary funds. Security Properties has raised
and deployed six funds, which have invested in more than 20,000
units with a cost basis over $4.5 billion. Mr. Shapiro has over 12
years of institutional experience working as both a sponsor and an
equity partner.
Mr. Shapiro began his career at Alliant Capital underwriting
potential acquisitions while serving as portfolio analyst on tax
credit syndication funds. Prior to joining Security Properties in
2017, he served as Vice President, Asset Management at American
Realty Advisors, where he oversaw a portfolio of over 2,000
units.
Mr. Shapiro holds a Bachelor of Business Administration from Boston
University as well as a Master’s of Construction Management from
the University of Southern California.
Steve TeSelle
Managing Director, Affordable Housing Group
Steve TeSelle is the
Managing Director of the Affordable Housing Group at Security
Properties. He is a member of the Investment Committee and the
Board of Managers. He focuses on the acquisition and development of
affordable apartments nationwide utilizing a variety of joint
venture equity and 4% and 9% low-income housing tax credits. He is
responsible for leading the acquisition process including
overseeing initial underwriting and feasibility, contract
negotiation, due diligence, financing and partnership structuring
and closing.
Since joining Security Properties in 2007, Mr. Teselle has been
involved in a wide variety of projects including general partner
interest acquisitions, limited partner interest acquisitions, note
purchases, mixed-use communities, acquisitions with institutional
joint venture partners and 4% tax credit and tax-exempt bond
rehabilitations. He is a graduate of the University of Washington
with a Bachelor’s degree in Business Administration, Finance.
Mary Marin
Vice President, Property Management
Mary Marin is the Vice
President of Property Management at Security Properties
Residential. Bringing over 25 years of property management
leadership experience, she is responsible for on-site conventional
operations and guiding regional leadership performance.
In her previous role as a Regional Director, Ms. Marin managed the
development and implementation of standard operating procedures,
leading a clear and shared vision of property business plans,
financial performance, resident relations, employee engagement,
risk management, and smooth navigation of acquisitions and
dispositions across a diverse portfolio of conventional,
affordable, senior, mixed-use development, and lease-up
properties.
Ms. Marin holds an Arizona Real Estate license and has achieved
IREM and NAA certifications.
Nisreene Atassi
Vice President, Brand and Communications
Nissy Atassi is the Vice
President of Brand and Communications at Security Properties, where
she leads brand strategy, content marketing, social media, and
executive communications across the organization. With more than 20
years of experience in global communications and integrated
marketing, she brings a strategic and data-driven approach to
amplifying the company’s voice and building meaningful connections
with key audiences.
Prior to joining Security Properties, Ms. Atassi held leadership
roles at some of the world’s largest public relations and travel
technology firms, including a tenure at Expedia Group, where she
led high-performing global teams across brand, content, and social
marketing. She has shaped strategies for globally recognized brands
such as Sony, S.C. Johnson, Kraft, PepsiCo, and Dubai Tourism, with
a focus on creating compelling narratives that deliver measurable
business impact.
Ms. Atassi has also advised executives at publicly traded
companies, helping elevate their profiles through thought
leadership, media engagement, and public speaking. She is a
seasoned keynote speaker, podcast host, and executive producer,
having launched one of the top 15 travel podcasts as recognized by
Travel + Leisure.
Ms. Atassi holds a bachelor’s degree in Communications and is known
for her ability to lead and mentor high-performing teams, align
marketing strategies with business goals, and drive
enterprise-level results through earned and owned media.
Alex Gauper
Senior Director, Conventional Investments
Alex Gauper is Senior
Director of Conventional Investments. He focuses on the sourcing
and capitalization of market rate apartments in Washington, Oregon,
Arizona, and Nevada. Since joining SP in 2015, Mr. Gauper has been
involved in the acquisition of 103 properties, encompassing over
26,000 units and a market value of $6.6 billion. The Conventional
Investments group consistently ranks as one of the largest buyers
of multifamily real estate in the Pacific Northwest.
Prior to joining Security Properties, Mr. Gauper worked as a Senior
Associate in Seattle-based Moss Adams’ Assurance Department where
he was primarily focused on serving middle-market privately-held
companies in the construction and real estate industries. He holds
a Bachelor’s degree in Accounting from Washington State University,
Certificate in Commercial Real Estate from the University of
Washington and remains a licensed Certified Public Accountant in
the state of Washington.
Amy Baker
Senior Director, Accounting
Amy Baker is Senior
Director of Accounting at Security Properties, bringing extensive
financial experience to the role. In her position, Ms. Baker
oversees critical financial functions, audits, cash flow, payroll,
and day-to-day financial operations. Her expertise extends to
managing financials for the legacy and affordable portfolios, and
she excels at optimizing returns through asset liquidation. Within
SP's intricate partnership structures, Ms. Baker plays a pivotal
role, managing transactions with a focus on precision. Ms. Baker
also contributes to SP's strategic growth, leading corporate
projects and initiatives.
She began her career with SP as an intern in 2006. Ms. Baker holds
a Bachelor's degree in Accounting and Finance from the University
of Washington Foster School of Business.
Brian Fulbright
Senior Director, Affordable Housing
Brian Fulbright is Senior
Director of the Affordable Housing Group at Security Properties. He
is responsible for the acquisition and disposition of affordable
housing communities nationwide. His transactions include a variety
of LIHTC preservation strategies, portfolios, partnership
interests, work-force housing, and mixed-income properties.
Capitalization structures include partnering with institutional and
private joint venture capital, non-profit organizations, and the
utilization of various public financing programs including 4% & 9%
low-income housing tax credits, tax-exempt bonds, and various HUD
programs. He is directly involved in strategic decision making of
the Affordable Housing Group.
Since joining Security Properties in 2011, Mr. Fulbright has
contributed to the success of the company in a variety of
positions. Originally in Asset Management, where he oversaw a mix
of the affordable portfolio and value-add rehabs, he joined the
Affordable Housing Group in 2015.
He holds a Bachelor of Arts in Geography with a Minor in Urban
Design & Planning from the University of Washington and Master’s of
Science degrees in Finance and Real Estate & Construction
Management from the University of Denver.
David Wartena
Senior Director, Construction Services
David Wartena is the
Senior Director of Construction Services for Security Properties.
Mr. Wartena developed and leads a construction management team in
executing renovations for properties acquired by SP and its
partners. His responsibilities include oversight of all capital
projects primarily aimed at increasing value. Since joining SP in
2001 and having managed the Renovations team since 2013,
Mr. Wartena has completed 25,000+ unit renovations and over
$500 million in capital projects.
His career began in the new home industry where he participated in
the construction management of over 4,500 residential homes in the
Puget Sound area, as well as commercial office space in Redmond and
luxury custom homes. Mr. Wartena holds a Bachelor’s degree in
Construction Management from Brigham Young University.
Éamon Finneran
Senior Director, Operations & Technology
Éamon Finneran is the
Senior Director of Operations & Technology at Security Properties.
He joined the company in 2012 as a Financial Analyst within the
Asset Management department.
Since then, his role has evolved to focus on leveraging technology
to address the company's growing analytical, operational, and data
needs. He oversees analytics for more than 140 assets, totaling
over 30,000 units with a combined value exceeding $6 billion. He is
the chief architect of SP’s best-in-class proprietary business
intelligence and analytics platform and is continually seeking
opportunities to automate and streamline SP’s operations on a large
scale.
Prior to joining Security Properties, Mr. Finneran worked as an
Analyst and Underwriter in the Office of Healthcare Programs at the
US Department of Housing and Urban Development.
He holds a Bachelor of Arts in Economics with Honors from the
University of Washington.
Jeff Garrison
Senior Director, Affordable Housing
Jeff Garrison is the
Senior Director of the Affordable Housing Group at Security
Properties, where he manages nationwide acquisitions, dispositions,
and capitalization of affordable housing communities. His role
involves strategic partnerships with institutional investors,
private equity firms, and non-profit organizations. Jeff
specializes in leveraging public financing and government subsidy
structures, such as 4% and 9% Low-Income Housing Tax Credits,
tax-exempt bonds, and various HUD programs. He is pivotal in both
strategic planning and the operational management of the Affordable
Housing Group.
Joining Security Properties in 2013, he has led numerous
transactions, including LIHTC preservation projects, institutional
joint ventures, portfolio acquisitions, and the procurement of
mixed-use and workforce housing.
He holds an MBA from the Albers School of Business at Seattle
University and a Bachelor of Arts in History from Willamette
University.
Sarah Mitchell
Senior Director, Human Resources
Sarah Mitchell is the
Senior Director of Human Resources for Security Properties. She
joined SP in 2018 bringing over 13 years of experience in human
resources and is responsible for full-cycle human resources
encompassing policies/practices, staffing, compensation, talent
acquisition, benefits, performance management, employee relations,
employee recognition, and health and safety, and positively impacts
company growth by connecting talent capabilities with business
goals. Ms. Mitchell’s team supports over750 team members in 12
states
Ms. Mitchell holds a Master’s in Science degree in Psychology and
is accredited by both the Human Resources Certification Institute
as a Professional in Human Resources and the Society for Human
Resource Management as a Senior Certified Professional. Recently,
Ms. Mitchell achieved certification in Inclusive Workplace Culture
and in Workplace Investigations. She also leads a DE&I Task
Force that seeks new ways to engage and develop diversity, equity
and inclusion in our organization.
Shanon Ford
Senior Director, Asset Management
Shanon Ford is Senior
Director of Asset Management. He brings three decades of experience
in real estate and finance to the group, having worked in asset
management, acquisitions, commercial and multifamily appraisal, and
real estate securities and capital markets. This breadth of
experience provides the foundation for strong business decisions
and problem solving.
Mr. Ford currently manages multifamily properties in the Pacific
Northwest and Denver and leads a team of Asset Managers and
Analysts. He holds a Master of Science in Real Estate and a
Bachelor of Arts in Economics from the University of
Washington.