The #1 Practice and Financial Management System
for Law Firms
Efficient operations and financial control are crucial to your firm’s business, which is why Expert Sierra is at the core of ours. It offers everything from financial, case, and matter management, to billing, rates, and time and expense capture. Delivering solutions to meet the unique complexities of your firm is why we’re the industry’s most trusted partner.
Reimagining the General Ledger: Get a closer look inside intelligent & cloud-first financial management. Watch Now →
The #1 Choice for Law Firms Across the Globe
The #1 Choice for Law Firms Across the Globe
Why Firms Choose Expert Sierra
Learn How Chartwell Law Built the Foundation for What’s Next
Success isn’t just about keeping pace, it’s about building a technology foundation that can scale as the firm grows.
Chartwell Law reached that point after growing from four attorneys to nearly 300, with offices from coast to coast. Learn how Aderant supported its next phase of growth by bringing practice and financial management together in a secure, unified cloud solution.
Automate & Accelerate the Entire Revenue Cycle

Comprehensive Financial Management
Drive growth and profitability by accelerating the intake to cash cycle. Achieve faster cash collection and more intelligent decision making. Our powerful suite of accounting applications improves financial visibility and control, streamlines budgeting and collections, and arms your firm with AI-driven automation and insights along with extensive reporting and analytics.
Time & Expenses
Empower lawyers to easily enter and track their time on any device, while adhering to client-defined guidelines. Expense management lets you conveniently log expense claims from any place and at any time, with configurable workflows for automated routing and approval.


Billing & Rates
Edit and post bills through one intuitive application, while specific rate levels are automatically selected to ensure billable time is accurate. Automate your billing process with paperless pre-billing, Alternative Fee Arrangement management, and integrations for seamless bill delivery, tracking, and billing compliance.
Matter & Case Management
Unify critical matter, case, and financial data in one dashboard. Easily track performance and manage outstanding WIP and AR. With real-time access to comprehensive matter and case details, you can improve visibility and collaboration, drive process automation, and improve planning and forecasting. This ultimately enhances client service while reducing risk and cost.


Practice Tools
Boost timekeeper efficiency by centralizing all critical financial and WIP information, as well as actions that require review and attention, in a single dashboard. Automate client intake, conflict checks, and document creation to save lawyers’ time. Enhance internal and external knowledge sharing and collaboration.
Workflow & Integration
Build, test, and deploy workflows across the firm, and easily adapt them to varying client and matter intake requirements. Easily integrate with other key business systems such as a CRM, DMS, or HR solution. Improve staff efficiency while ensuring compliance with business rules.


Inquiries & Business Intelligence
Leverage a wide range of customizable inquiries to quickly execute detailed reports from any data source. Automatically distribute them to partners, timekeepers, and other decision-makers. Business intelligence dashboards provide detailed analytics and actionable insights to drive informed business decisions, identify areas for improvement, and maximize profitability.
Automate & Accelerate the Entire Revenue Cycle

Comprehensive Financial Management
Drive growth and profitability by accelerating the intake to cash cycle. Achieve faster cash collection and more intelligent decision making. Our powerful suite of accounting applications improves financial visibility and control, streamlines budgeting and collections, and arms your firm with AI-driven automation and insights along with extensive reporting and analytics.

Time & Expenses
Empower lawyers to easily enter and track their time on any device, while adhering to client-defined guidelines. Expense management lets you conveniently log expense claims from any place and at any time, with configurable workflows for automated routing and approval.

Billing & Rates
Edit and post bills through one intuitive application, while specific rate levels are automatically selected to ensure billable time is accurate. Automate your billing process with paperless pre-billing, Alternative Fee Arrangement management, and integrations for seamless bill delivery, tracking, and billing compliance.

Matter & Case Management
Unify critical matter, case, and financial data in one dashboard. Easily track performance and manage outstanding WIP and AR. With real-time access to comprehensive matter and case details, you can improve visibility and collaboration, drive process automation, and improve planning and forecasting. This ultimately enhances client service while reducing risk and cost.

Practice Tools
Boost timekeeper efficiency by centralizing all critical financial and WIP information, as well as actions that require review and attention, in a single dashboard. Automate client intake, conflict checks, and document creation to save lawyers’ time. Enhance internal and external knowledge sharing and collaboration.

Workflow & Integration
Build, test, and deploy workflows across the firm, and easily adapt them to varying client and matter intake requirements. Easily integrate with other key business systems such as a CRM, DMS, or HR solution. Improve staff efficiency while ensuring compliance with business rules.

Inquiries & Business Intelligence
Leverage a wide range of customizable inquiries to quickly execute detailed reports from any data source. Automatically distribute them to partners, timekeepers, and other decision-makers. Business intelligence dashboards provide detailed analytics and actionable insights to drive informed business decisions, identify areas for improvement, and maximize profitability.
Unlock the Next Generation of Financial Management
Expert Sierra is more than a move to the cloud – it’s your gateway to Aderant’s next generation of financial applications, analytics, and AI-powered innovation. Built on Stridyn and enhanced by MADDI AI, these solutions help law firms streamline financial operations and gain deeper business insight – while providing a foundation for continuous innovation.
Applications & Capabilities Only on Sierra
| Capability/Advantage | Expert | Self-Hosting | Expert Sierra |
|---|---|---|---|
| Next-Generation Applications Aderant Accounts Receivable Aderant General Ledger Aderant Analytics Future Financial Applications |
X | X | ✓ |
| AI & Intelligence askMADDI Natural Language Queries MADDI AI-Powered Automation Agent Center & AI Financial Agents |
X | X | ✓ |
| Platform Unified Stridyn Experience AI-Ready Data Foundation & Data Plane Continuous AI & Platform Innovation |
X | X | ✓ |

What Clients Say About Expert Sierra
“We partnered with one of the leading business management software firms in the world to assist us in progressing our digitization strategy. Aderant Expert enables us to leverage new technology that is agile enough to meet the growing needs of our clients and our business. The Aderant team clearly understood our focus and the need to deliver benefits to our clients as well as our internal stakeholders.”
– Jodi Proudlock, COO, Meridian Lawyers
“We have reduced our prebill time by more than 50%.”
– Holland & Knight LLP
“Knowing your system is secure and having that peace of mind is invaluable for us. So, something tested and trusted over time with a proven vendor that can handle it all seamlessly was a major requirement. We’ve really trusted Aderant with security and Sierra’s really performed well and has been a cornerstone of our operational success.”
– Fross Zelnick
“With Expert Sierra, we are embracing the latest technology while maintaining our customizations, integrations, and progressive approach to leverage powerful time and billing solutions that will help us deliver the high standard of excellence our clients expect and deserve.”
– Holland & Knight LLP
“Cash Receipt Automation has cut the time to process receipts in half.”
– Kostelanetz LLP

What Clients Say About Expert Sierra
“We partnered with one of the leading business management software firms in the world to assist us in progressing our digitization strategy. Aderant Expert enables us to leverage new technology that is agile enough to meet the growing needs of our clients and our business. The Aderant team clearly understood our focus and the need to deliver benefits to our clients as well as our internal stakeholders.”
– Jodi Proudlock, COO, Meridian Lawyers
