Accounting and Systems Assistant

MendenFreiman, LLP is seeking an Accounting & Systems Assistant who shares our commitment to providing exceptional client service and delivering high-quality legal support. We are looking for a bright, organized, dependable, and motivated professional who thrives in a collaborative environment, values meaningful challenges, and builds relationships grounded in trust and reliability.

This in-office position works closely with the Director of Accounting & Finance and the Billing & Systems Manager to support the firm's accounting operations, financial administration, practice management systems, and billing functions. The ideal candidate is highly detail-oriented, organized, and technologically proficient, with an interest in both accounting and legal practice management.

Successful candidates will take pride in providing exceptional internal and client service while demonstrating professionalism, accuracy, accountability, and a commitment to operational excellence. This role offers an excellent opportunity to develop expertise in law firm accounting, financial reporting, billing, and systems administration while contributing to the firm's continued success.

Key Responsibilities 

Accounting & Finance Responsibilities

• Support accounts payable functions, including processing vendor invoices and certified charges
• Enter daily cash receipts into Centerbase, Firm’s practice management software
• Perform initial reconciliation of office credit card transactions
• Support the firm's collections process by monitoring accounts receivable aging, reviewing outstanding balances, maintaining collections records, preparing reports, and coordinating follow-up communications with attorneys and clients to facilitate timely payment of invoices
• Maintain accurate financial records and organized filing systems
• Provide backup support for processing, and depositing checks

Systems & Practice Management Responsibilities

• Assist with the client intake process, including matter setup, and related administrative follow-up
• Review matters in Centerbase on a weekly basis to ensure accuracy and identify necessary updates
• Review and close inactive client matters on a monthly basis
• Assist with Centerbase data maintenance, user support, troubleshooting, and system related projects
• Support data audits and maintain documentation for accounting, billing, and practice management processes

Billing

• Support the monthly billing process, including the preparation, review, and finalization of client invoices
• Serve as backup to the Billing & Systems Manager during billing cycles and attorney invoice review periods

Administrative Support

• Provide general administrative support to the Director of Accounting and Finance
• Assist with special projects and operational initiatives
• Perform general office support duties, including processing certified mail, handling post office runs, maintaining filing systems, and scanning, filing, and digitizing documents as needed

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