
Don't Compromise, Customize.
About MMSI
MMSI launched in Severna Park, Maryland, in 1985 and has been firmly committed to the real estate industry for over 30 years. We built Membership Director on an accounting platform, guaranteeing standard accounting practices and full audit trails. Its platform was created to allow Membership Director to easily adapt and evolve as our customers' requirements do. This unique approach has allowed our customers to grow and incorporate new technologies as they became available without having to start over from scratch. Our personal service and dedication to our clients is unmatched in our industry and is one of the reasons that our average customer has been with us for over 18 years.
Membership Director
An Evolutionary Solution
The ever-changing demands of members, boards of directors, state and national associations, and government agencies require a flexible solution that adjusts quickly to change. Membership Director's customizable and modular design makes it easy to keep pace with your evolving business processes.
A Smarter Way To Manage Your Association and MLS
Effectively serving your membership is your top priority, along with controlling the health of your organization and demonstrating financial responsibility. Membership Director is the only system that directly integrates accounting with membership management to give you all the information you need to make better business decisions.
Your Business, Simplified
By incorporating all essential business tools under a single, consistent interface, Membership Director eliminates the frustration of having to learn multiple systems. Your account manager is there to support you every step of the way – from new members joining online through the creation of your financial statements.
Member Portal




Staff Tools
• Member and Office Management
• Billing & Accounts Receivable
• RPAC Tracking & Reporting
• Committees & Skills
• Designation Tracking
• Member Transfer History
• Detailed Audit Trail
• Rosters, Labels, & Mail Merges
• Accounting Export
• NRDS CDB Interface
• Support/Call Tracking
• Events Management
• Education Management
• Mass Email
• Beautiful, Modern, Responsive Design for All Devices
• Payments by Member, Broker, and/or Office
• AutoPay Card on File
• On-Demand RPAC Investments
• Member Profile Update
• Education Registration & Course History
• Event Registration & History
• Member, Office, & Affiliate Search
• Broker Tools
• Membership
• Application
• Online Store
• Surveys & Elections
Optional Modules
• Cloud Hosting
• General Ledger & Accounts Payable
• Point of Sale and Online Member Store
• Elections & Surveys
• Lockbox Interface
• Comprehensive MLS Integration
• Fine Billing Import
• SSO Integration
• Identity Management
• Online Member Application
Membership Director is the most accurate and customizable membership and accounting system specifically focused on REALTOR® associations and MLSs, on-site or in the cloud.
Member Portal Highlights

"With an association, an MLS, a real estate school and a charitable foundation, managing the Charlotte Regional REALTOR Association's complex membership needs is no easy task. We've counted on MMSI for over twenty years and they have consistently delivered! I wouldn't trust any other vendor to play such a vital role in our business."
Steve Byrd, VP and CTO
Carolina Multiple Listing Services, Inc.
18+ Years Average Customer Relationship
30+ Years' Experience
Serving the Real Estate Industry
99% Customer Retention