Michael J. Darby

Principal, Founder

Tested, Proven, and Trusted.

Our senior executive team’s deep experience, reputation for challenging the conventions of traditional real estate, and record of success are why our investment partners turn to Monument Realty for creative approaches in development, management, leasing, and sales.

Douglas D. Olson

Executive Vice President

F. Russell Hines


Roger B. Carlson

Executive Vice President,

Joshua A. Olsen

Executive Vice President

Behind a Great Company, a Great Team.

Angela Mayle

Angela Mayle (Angie)


Angie Mayle has been with Monument Realty since 1999 and is the head of our accounting department, overseeing all accounting functions from the daily operations to the monthly, quarterly, and annual reports and filings. One of the company’s longest serving employees, Angie has been involved in the accounting for every project in our portfolio. Additionally, she handles human resources and related items such as payroll and insurance.

Angie has a Bachelor of Science in Business Management from the University of Maryland.

Hometown: Charlotte Hall, MD
Favorite movie: Princess Bride
Favorite word: Awesome
Drink of choice: Dr. Pepper

Angela (Angie) Mayle
Anthony William Barton

Anthony Barton (Tony)

Senior Vice President of Construction

As a senior vice president of construction at Monument Realty, Anthony oversees the construction and pre-development of several projects at Monument Realty, including a residential and commercial project in Chinatown, The Shaw condominiums, and the condominiums on V Street in Washington, DC. His responsibilities include managing the day-to-day activities required for the design, permitting, construction, and sale/lease of these high-quality real estate construction projects.

Anthony’s industry memberships and affiliations include the Washington Building Congress (WBC) and the Design-Build Institute of America (DBIA). He is LEED certified and also has a Bachelor of Architectural Engineering from Penn State University.

Hometown: Minersville, PA
Favorite place visited: Zion National Park
Favorite word: Q.E.D.
What my neon sign would say: Please convert to LED

Anthony (Tony) Barton
Anthony Luce

Anthony Luce (AJ)

Development Manager

AJ Luce brings more than a decade of experience, local knowledge and connections to Monument Realty. AJ’s day-to-day involves sourcing and executing real estate developments through the entire deal cycle. Since starting at Monument Realty, AJ has been heavily involved with The Shaw, Riverside Square, V Street, 900 Fleet and Chinatown.  Simultaneously, AJ has been pursuing several other promising ventures. AJ earned his Master of Science in Real Estate from Johns Hopkins University, and is an active member of the National Association for Industrial and Office Parks (NAIOP), the Urban Land Institute (ULI) and Washington D.C.’s Real Estate Group (REG).

Hometown: Great Falls, VA
Favorite building in the world: Capitol Building, DC
Hidden talent: Can juggle.
Favorite word: Yes

Anthony (AJ) Luce
Colleen Kittel

Colleen Kittell

Vice President of Marketing

Colleen Kittell serves as the vice president of marketing for Monument Realty. She is responsible for the corporate and property marketing for Monument Realty’s portfolio throughout the Virginia, Maryland, and Washington, DC markets.

Prior to joining Monument Realty, Colleen worked for both corporate in-house and marketing agency environments across the country. Her real estate industry experience includes Bozzuto, BRE Properties, Inc., and Related Companies. For Monument Realty, Colleen brings notable expertise in creating holistic, results-driven strategic marketing programs that encompass brand development, customer segmentation, media planning and analysis, and digital and social media campaigns.

Colleen holds a Bachelor of Arts from the University of Virginia and a Masters of Arts from Georgetown University.

Hometown: Pittsburgh, PA
Favorite place to visit in DC: Botanical gardens
Favorite sound: Coffee brewing
Favorite word: Outstanding

Danny Brooker

Danny Brooker

Director of Retail Acquisitions

Danny Brooker leads the efforts to build Monument Retail’s Urban Retail Acquisition Plan portfolio, purchasing retail assets throughout different sub-markets of Washington, DC. He also represents private clients in the acquisition and disposition of single tenant net lease property throughout the country.

Danny has a Bachelor of Arts in Business Administration from George Washington University.

Hometown: Windsor, England
Favorite place to visit in DC: Georgetown Waterfront
Favorite sound: Golf ball going into the hole
Best known in the office for: Wearing bright socks

Devin Keenan

Devin Keenan

Director of Property Management

Devin Keenan is the director of property management for Monument Realty’s office and residential assets in Washington, DC and Maryland. Managing a portfolio comprised of 1.2 million SF, he ensures all ownership goals are achieved with regard to financial performance, capital improvement, leasing, and tenant satisfaction. Together with his staff and sub-management service partners, Devin performs all lease administration, service contract, construction and procurement management. Devin also administers all tax and insurance related matters and performs all financial analysis and reporting related to his managed assets.

In addition to his role at Monument Realty, Devin is on the Board of Directors of the Institute of Real Estate Management (IREM)—Chapter 8 as the director of communications.

Devin holds a Registered Property Manager (RPA®) Designation from the Building and Office Management Institute (BOMI), as well as a Salesperson License from the DC Real Estate Commission. Additionally, he is a LEED Green Associate and Certified Property Management (CPM) Candidate. Devin received his Bachelor of Arts in English Literature from Miami University.

Hometown: Youngstown, OH
Favorite building in the world: Falling Water (Frank Lloyd Wright designed house in Pennsylvania)
Hidden talent: Greatest Super Mario player of all time
Wouldn’t leave home without: His Wayfarers

Edmund Hott

Edmund Hott (Sam)

Engineering Manager

Sam Hott has been in the industry since 1981 and joined Monument Realty in 2005. As engineering manager, he oversees all building engineers as well as third-party engineering contracts. Sam is also involved in tenant build-outs and works closely with construction managers on new projects to review plans for any work or alterations made to the buildings.

Sam is a designated Washington, DC 3rd-Class Stationary Steam Engineer.

Hometown: Romney, WV
Most inspired by: His dad
Wouldn’t leave home without: Telling his wife he loves her
What my neon sign would say: Always in!

Edmund (Sam) Hott

Emily Lilly


As an associate at Monument Realty, Emily is responsible for organizing office operations and procedures. Emily ensures that Monument Realty’s teams have everything they need to do their jobs efficiently and effectively. Along with administrative duties, Emily also supports Monument Realty’s accounting, development, property management, marketing and IT teams with special projects. Emily also manages all internal communication and event planning.

A graduate from Moorpark College, Emily has an Associate Degree in mathematics. Prior to joining Monument Realty, Emily gained experience in office and restaurant management, database management, engineering systems management and IT management.

Hometown: Glen Falls, NY
Fun fact: Was an international judo competitor
Most inspired by: My grandfather
Favorite place visited: Stockholm

Juan Anaya

Juan Anaya

Building Engineer

Juan Anaya is a lead building engineer at Monument Realty, responsible for the operation and maintenance of our 100 M Street commercial property.

Hometown: Laurel, MD
Favorite place visited: Cathedral of Santa Ana, El Salvador
Favorite sound: The ocean at night
Wouldn’t leave home without: Coffee

Kenneth Meile

Kenneth Meile (Ken)

Vice President of Construction

Ken Meile brings over 25 years of experience in the construction industry to his role at Monument Realty. A member of Monument since 2006, he’s responsible for managing the day-to-day activities required for the design, permitting, construction, and sale/lease of high quality real estate construction projects. Some examples among the many projects Ken has managed are Columbia Center, 2055 L Street, Executive Plaza, 225 North Calvert Street, Avidian, and One M.

Hometown: Wheaton, MD
Favorite building in the world: Empire State Building
Favorite sound: An outboard motor starting
Best known in the office for: Initiating great conversations

Kenneth (Ken) Meile

Kevin McCormick

Construction Manager

Kevin McCormick works with Monument Realty’s construction management team to oversee the construction process of Monument’s commercial and residential developments, from the initial design process through the sale or leasing of the building. Kevin works closely with Monument’s development and acquisitions teams, as well as architects and contractors in order to assist in the design process and budget development. Kevin’s day-to-day responsibilities include managing the budget, design, construction schedule and permitting process for each development.

Kevin has a Bachelor of Science in Mechanical Engineering from Tufts University.

Hometown: Laytonsville, MD
Favorite building in the world: The Colosseum
Favorite artist: Frank Sinatra
Drink of choice: Old Fashioned

Lewis Kelley

Acquisitions Associate

Lewis Kelley works with Monument Realty’s acquisitions team to source and execute real estate developments and acquisitions through the entire deal cycle. Lewis focuses on financial analysis and underwriting, as well as conducting market research to determine the feasibility of potential deals. He has worked on several Monument Realty projects, including Riverside Square, 900 Fleet Street and Chinatown.

Lewis has a Bachelor of Arts in Economics from Syracuse University, as well as an MBA from Georgetown University’s McDonough School of Business.

Hometown: Syracuse, NY
Favorite building in the world: The Chrysler Building
Favorite place visited: New Zealand

Lewis Kelley

Mark Pratt

Chief Engineer

Mark Pratt has been in the industry since 1979, joining Monument Realty in 2005 after broad experience with many companies in construction and engineering in North Carolina, Virginia, Pennsylvania, New Jersey, and Washington, DC. Mark's responsibilities as the chief engineer include engineering and building operations, building owner punch-out inspections, as well as commissioning, starting up, and managing on-site construction. With his team, he also coordinates base building renovations, improvements, repairs, and special projects.

Hometown: Prince William County, VA
Favorite place to visit in DC: The Air and Space Museum
Wouldn’t leave home without: A flashlight
Best known in the office for: Being a problem solver

Mehegan Easley

Development Manager

As a development manager at Monument Realty, Mehegan is responsible for the development of several projects, including residential, retail, commercial and mixed-use sites, such as Avidian, 40 Patterson Street and Liberty View. Mehegan manages these projects through their entire lifecycle: working with local governments and consultants to obtain necessary entitlements; designing the project alongside architects, engineers, designers, and various consultants; overseeing the general contractor with support from Monument Realty’s in-house construction team; and working with sales and property management teams to stabilize the project once construction is complete.

A two-time graduate of the University of North Carolina Chapel Hill, Mehegan has a Bachelor of Science in Business Administration, as well as a Masters of Business Administration with a concentration in real estate and finance.

  • Hometown: St. Louis, MO
  • Favorite building in the world: Carbide & Carbon Building
  • Favorite place to visit in DC: Running along the National Mall
  • Favorite place visited: Rome, Italy
Mehegan Easley
Natalie Hasney

Natalie Hasny

Director of Sales, Associate Broker

Natalie Hasny has served as director of sales for Monument Realty since 2004, managing and executing the sales of more than 1,100 residential transactions totaling over $500 million. As a licensed associate broker in Washington, DC, Maryland, and Virginia, as well as a licensed salesperson in Florida, Natalie is well versed in the operations of the real estate market. Her years in the service industry have provided her a great understanding of the intricacies of making deals and the mechanics of building relationships.

Natalie's extensive network of contacts in the real estate industry and related services enable her to bring the highest level of comprehensive real estate services to clients. Properties she has successfully sold at Monument Realty include The Watergate, The Odyssey, Chase at Bethesda, and Potomac Place.

Natalie has a Bachelor of Science in Political Science and a Bachelor of Arts in French from the University of Maryland.

Hometown: Bethesda, MD
Favorite place to visit in DC: The Sculpture Garden at the National Gallery of Art
Favorite word: Prosperity
Drink of choice: Champagne

Rich Sillery

Retail Associate

As a member of Monument’s retail division, Rich Sillery works to expand Monument’s Urban Retail Acquisition Plan portfolio through acquisitions, leasing, and private client investment sales representation. With extensive knowledge and experience in guiding clients through acquisitions, dispositions, and 1031 exchanges, Rich assists in identifying potential opportunities, underwriting and closing on retail assets in targeted markets throughout Washington, DC.

Rich has a Bachelor of Arts in Economics from Union College.

Hometown: Gaithersburg, MD
Favorite place to visit in DC: Capital One Arena
Favorite movie: Troy
Favorite place visited: San Sebastián, Spain

Shubhangi Pethe

Shubhangi Pethe

Accounting Associate

Shubhangi Pethe joined Monument Realty in 2011. As an accounting associate, Shubhangi is responsible for handling monthly accounting functions and payments. Additionally, she answers queries from our team and vendors about billing and payments, and also maintains account related records.

Shubhangi has a Bachelor of Commerce from Garware College of Commerce at Pune University in India.

Hometown: Pune, India
Fun fact: Loves to ride her motor scooter
Favorite word: Namaste
Favorite sound: Birds chirping

Marcellius Banks

Assistant Property Manager

As assistant property manager, Marcellius is responsible for 100 M Street SE, a Class A office building located in the Capitol Riverfront, where he manages tenant relations, maintenance, and coordination of building projects. He also supports the current office portfolio and works hand in hand with the property management team to maintain the value of the buildings, meet sustainability goals, and compile monthly financial reports and annual budgets.

Marcellius has a Bachelor of Science in Business Management from Virginia State University and is a member of AOBA. He is also on the Emerging Leaders Council for the DC Real Estate Commission.

Hometown: Chesapeake, VA
Favorite building in the world: The Eiffel Tower
Place you most want to visit: Maldives 
What would you put on your neon sign: “The beach is my happy place”

Marcellius Banks

Herbert Martinez (Herbie)

Chief Engineer

Herbert (Herbie) Martinez joined Monument Realty after almost 20 year of experience in the industry working with multiple organization including C.B. Richard Ellis and Johnson Controls, Inc. Herbie’s responsibilities as the chief engineer include managing the engineering and building operations,  punch-out inspections, and on-site construction. With his team, he also coordinates base building renovations, improvements, repairs, and special projects.

Herbie holds a Universal CFC, as well as General Certificates in Engineering and Air Conditioning & Refrigeration.

Hometown: Bronx, NY
Favorite place you have traveled: Tenerife, Canary Islands off the coast of Spain
Hidden talent: Professional Trombonist specializing in Salsa Music
Best known in the office for: My bubbly personality

Herbert Martinez (Herbie)

Valerie Mnayarji

Retail Associate

As a member of Monument's retail division, Valerie Mnayarji works to expand Monuments Retail portfolio through acquisitions and leasing with a focus on supporting new-to market clients with their expansion efforts in the DC MSA.  With experience and knowledge from growing up in the development industry with her father's development company, Valerie is skilled at guiding clients through identifying opportunities, underwriting and closing on retail assets in targeted markets throughout Washington, DC.

Valerie has a Bachelor of Arts in International Economic Relations and Business from American University.

  • Hometown: Longwood, FL
  • Favorite place to visit in DC: Gallery of Art (West Building)
  • Most inspired by: Salvador Dali & Gandhi
  • Favorite Word: Profit
Valerie Mnayarji