Administrative Assistant

Administrative Assistant

O’Brien Commercial Properties | Concord, Massachusetts

About O’Brien Commercial Properties

O’Brien Commercial Properties is a boutique commercial real estate brokerage firm headquartered in Concord, Massachusetts. The firm specializes in representing property owners, tenants, and investors, providing strategic advisory services across leasing, sales, and asset positioning. We are committed to delivering thoughtful guidance, disciplined execution, and long-term value for our clients. Our culture is entrepreneurial, collaborative, and results-driven.

Position Overview

O’Brien Commercial Properties is seeking a highly capable, detail-oriented Administrative Assistant to provide comprehensive administrative and operational support to executive leadership and brokerage operations. This role requires exceptional organizational ability, sound judgment, discretion, and the capacity to manage multiple priorities in a fast-paced environment. The Administrative Assistant will serve as a critical partner in ensuring operational efficiency, transaction coordination, and seamless day-to-day execution.

Key Responsibilities

• Manage executive communications, including email correspondence, calendar oversight, and meeting coordination
• Provide day-to-day administrative support and ensure efficient office operations
• Maintain and organize digital file systems and company Drive infrastructure
• Develop, document, and update Standard Operating Procedures (SOPs) to enhance operational consistency
• Prepare and administer Listing Agreements and related brokerage documentation
• Draft and coordinate Letters of Intent (LOIs), proposals, and document revisions
• Oversee transaction coordination from initial listing through closing
• Prepare and distribute Owner Reports and client communications
• Manage property listings across relevant online platforms and databases
• Track brokerage pipeline activity, deal flow, and lead management systems
• Prepare executive presentations and offering materials with a high level of accuracy and

professionalism

• Process invoices and oversee subscription and vendor tracking

Qualifications

• Commercial real estate experience preferred
• Demonstrated excellence in organization, prioritization, and time management
• Strong written and verbal communication skills
• Exceptional attention to detail and commitment to accuracy
• Proficiency in Microsoft Office and/or Google Workspace
• Ability to manage multiple projects concurrently in a deadline-driven environment
• Professional demeanor with a high level of discretion and integrity

This position offers the opportunity to work directly with executive leadership, gain meaningful

exposure to commercial real estate transactions and strategy, and contribute to a growing, highly

respected brokerage platform. O’Brien Commercial Properties values professionalism, initiative,

and a commitment to excellence.

Pay: $45,000.00 - $50,000.00 per year

Benefits:

• Health insurance
• Paid time off

Work Location: In person