About the role
Description
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
Requirements
Bachelor’s degree required
Experience with Centerbase or similar legal practice management software strongly preferred
1-3 years of experience in legal billing, accounting, finance, practice management, or administrative operations within a law firm, accounting firm, financial services firm, or other professional services organization preferred
Strong organizational, time management, and problem-solving skills
Demonstrates initiative, reliability, and a positive, professional attitude
Ability to prioritize competing demands and adapt in a fast-paced environment
Proficiency with Windows-based software and Microsoft Word, Excel, and Outlook required
Ability to handle confidential and sensitive information with discretion and professionalism
Strong proficiency in Microsoft 365 applications, particularly Excel, including the ability to create, maintain, and analyze spreadsheets and financial data
What Success Looks Like
Maintains a high level of accuracy and attention to detail in all financial and administrative tasks
Demonstrates reliability, accountability, and strong follow-through
Exhibits curiosity and aptitude for learning practice management systems, reporting tools, billing applications, and technology platforms
Communicates professionally and collaborates effectively with attorneys, staff, clients, and vendors
Takes initiative to identify issues and recommend solutions
Manages competing priorities while meeting deadlines in a fast-paced environment
Contributes positively to the firm's culture of teamwork, client service, and operational excellence
About MendenFreiman
MendenFreiman is a boutique private wealth and business law firm trusted by high-net-worth individuals, business owners, and families for more than two decades. Our team is known for combining deep technical insight with practical, solutions-driven counsel across business formation, succession planning, commercial real estate, tax planning, and complex transactions.
We pride ourselves on a collaborative culture where attorneys and staff work closely together to deliver thoughtful, high-impact results. We emphasize consistency, accountability, and teamwork in how we serve clients and support one another across the firm.
If you’re looking to build your career with a firm respected for its expertise and values, MendenFreiman offers a place to thrive.
Please note that we will not be working with external recruiters for this search.
Benefits & Total Rewards
We offer a comprehensive benefits package designed to support both your professional growth and personal well-being. Benefits for this role include: Competitive base salary and bonus opportunity, comprehensive day-one benefits, medical, dental and vision coverage, retirement plan with company match, generous paid time off, employee assistance resources, and a modern Class A office environment.