Property Management

SIGMA provides residential and multifamily property management services in Maryland, New York and Washington D.C..

SIGMA is committed to providing customers with the highest quality of service. At the forefront of the SIGMA formula is our personnel. SIGMA professionals are the best in the business. As a company, SIGMA melds industry expertise with the newest technologies; delivering bottom line results, open lines of communication, and superb asset maintenance and personnel supervision.

Condo/HOA Management

  • Owner / resident relationship management
  • Attend board meetings
  • Prepare meeting and manager reports
  • Collect association fees

Multifamily Rentals

  • Landlord / tenant relationship management
  • Advertising / Leasing / Renewing
  • Tenant screening
  • Collecting rents

Property Services

  • Screening vendors / contractors
  • Bill payment
  • Supervision of personnel
  • Obtaining insurance
  • Monthly / Quarterly / Annual Reporting
  • Planning and budgeting
  • Maintaining the interior and exterior of the premises
  • Supervision of disbursements
  • Construction management
  • Filing of permits / certificates
  • Performing physical inspections
  • Managing safety and environmental issues

If you are interested in receiving a proposal to manage your community, please fill out and submit the following form. Once we have reviewed your request, we will be in touch within two (2) business days.

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SIGMA Real Estate Services was founded by Constantin Anagnostopoulos in 2005 as a privately held real estate management company. SIGMA aims to be the best provider of real estate services for its customers, renters and owners. SIGMA does this by building and leveraging its talent, implementing technological platforms, excercising fiduciary responsibility, and doing what’s right to service the customer while preserving real estate value, and enhancing investment benchmarks.

Constantin A. Anagnostopoulos

Founder and President

Mr. Anagnostopoulos holds a BS in economics and a minor in architecture from Lehigh University, as well as an MBA in finance from Northeastern University. His professional career carries over a decade of institutional multifamily investment experience with the firms Boston Capital, First Sterling Financial and Sentinel Real Estate Corporation. He has been responsible for residential portfolios ranging from 2,000 to 20,000 units, and has overseen over $500 million in multifamily acquisitions and dispositions.

In his past assignments, Mr. Anagnostopoulos had been instrumental in implementing technology initiatives, molding policy and procedure alterations and enhancing operational platforms. Capitalizing on that experience, Mr. Anagnostopoulos has molded a company from the ground up with SIGMA Real Estate Services, creating a lean and advanced real estate investment advisor, specifically designed to successfully operate multifamily and residential investments.

Being a strong proponent of giving back to his profession, Mr. Anagnostopoulos has lectured at New York University and Baruch College-CUNY, teaching future real estate leaders of America the principles of asset management, real estate finance and operating fundamentals. In addition Mr. Anagnostopoulos participates in conferences and industry events throughout the United States.

Anita Michaels

Audrey Monroe
Assistant Vice President

Harry Anagnos

If you’re looking for an opportunity to be part of a management and investment firm that prides itself on openness, teamwork and respect, the SIGMA family of companies is perfect for you.

SIGMA offers a comprehensive package of benefits, including; Medical, Life, 401(k) matching and more.

To apply for a job, please email us your cover letter and resume.

Please complete the following information so we may respond appropriately. When you are finished simply select Submit. Be sure to complete your contact information and we'll be in touch within two (2) business days.

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