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Aderant Expert Sierra

aderant.com

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Spec score 8.3 #5 of 27 in Legal Tech Software

What it is

Aderant Expert Sierra is a practice and financial management system for law firms, covering matter work, billing, trust management, and time and expense capture. Practice tools include conflict checks, file opening, client and matter management, work in progress, collections, reporting, and analytics. Billing features include paperless pre-billing, Alternative Fee Arrangement management, invoice flexibility, and billing compliance management. Lawyers can enter and track time on any device; expense claims can use configurable routing and approval workflows. Sierra can integrate with CRM, document management, and HR systems, and Aderant says existing customizations and integrations can be retained during migration. A First AML connection supports checks within the practice workflow and records verification outcomes for reporting and audit. Built on the Stridyn cloud platform, the product offers MADDI AI capabilities, including natural-language queries and AI-powered automation. Aderant describes proactive monitoring, extensive auditing, SOC 2 Type 2 compliance, and AWS hosting. The service is presented as remote and mobile-friendly, with global support coverage and optional elevated technical support. It runs on Android, iOS, and web. Pricing is not published; firms are asked to request a demo.

Spec sheet

What it does
Expert Sierra is Aderant’s cloud practice-management and financial-management system for law firms.Read 21 Oct 2026 · aderant.com
Purpose
Expert Sierra is a practice and financial management system for law firms.Read 7 Oct 2026 · aderant.com
Integrations
Aderant says Sierra integrates with Microsoft products and most document-management, financial and other legal applications.Read 21 Oct 2026 · aderant.com
Security
Aderant reports proactive monitoring, extensive auditing and SOC 2 Type 2 compliance for Expert Sierra.Read 21 Oct 2026 · aderant.com
Support
The FAQ directs customers to Aderant’s myAderant support portal and regional support centers.Read 21 Oct 2026 · aderant.com
Headquarters
Atlanta, Georgia, United StatesRead 28 Sep 2026 · aderant.com
AI and platform
Sierra is built on Aderant’s Stridyn platform and includes MADDI automation and askMADDI natural-language queries.Read 21 Oct 2026 · aderant.com
Android app
Google Play lists Expert Assistant Professional by Aderant North America with 1K+ downloads and declares no data shared with third parties or collected.Read 21 Oct 2026 · play.google.com
API and SDKs
An independent API analysis says there is often no broadly available self-service public API and that its example endpoints are hypothetical rather than official documentation.Read 21 Oct 2026 · supergood.ai
App availability
Aderant’s Expert Assistant Professional app is free on iPhone and iPad, supports Expert 8.2 or later, and provides time, expense, bill-editing and client/matter inquiry functions.Read 21 Oct 2026 · apps.apple.com
App complaint
An Apple reviewer reports that the mobile app frequently goes offline, freezes and lacks expected functionality.Read 21 Oct 2026 · apps.apple.com
Availability
The product page describes Expert Sierra as remote and mobile-friendly and says lawyers can enter time on any device.Read 7 Oct 2026 · aderant.com
Billing
Billing capabilities include paperless prebilling, alternative-fee arrangements, flexible invoices, rates, collections and billing-compliance controls.Read 21 Oct 2026 · aderant.com
Business intelligence
Custom inquiries can report from data sources and distribute results, while dashboards provide operational and profitability analytics.Read 21 Oct 2026 · aderant.com
Cloud operation
The cloud service is presented as eliminating firm management of hardware, infrastructure, updates, and security.Read 7 Oct 2026 · aderant.com
Company founded
Crunchbase and LinkedIn list Aderant as founded in 1978.Read 21 Oct 2026 · crunchbase.com
Company headquarters
Aderant is headquartered in Atlanta, Georgia, United States.Read 21 Oct 2026 · linkedin.com
Company legal name
Crunchbase lists the legal name as Aderant Holdings, Inc.Read 21 Oct 2026 · crunchbase.com
Company ownership
Aderant operates as a sub-organization and business unit of Roper Technologies.Read 21 Oct 2026 · crunchbase.com
Company size
LinkedIn places Aderant in the 501–1,000 employee range.Read 21 Oct 2026 · linkedin.com
Core functions
It includes financial, case and matter management, billing, rates, and time and expense capture.Read 7 Oct 2026 · aderant.com
Financial management
The system covers accounts payable, accounts receivable, tax, disbursements, general ledger, trust management, reporting and financial analytics.Read 21 Oct 2026 · aderant.com
First AML integration
Expert Sierra connects to First AML so firms can run AML checks in the practice management workflow and record verification outcomes for reporting and audit.Read 7 Oct 2026 · aderant.com
Hosting
The product is hosted on Amazon Web Services and delivered as a managed cloud service.Read 21 Oct 2026 · aderant.com
Integration scale
Aderant’s timeline says Sierra introduced more than 80 integrations in 2024.Read 21 Oct 2026 · aderant.com
Intended customers
Aderant presents Expert Sierra for law firms and reports that its Expert and Sierra products serve firms of different sizes and regions.Read 7 Oct 2026 · aderant.com
Licence
Aderant’s public product materials describe Expert Sierra as hosted SaaS and do not publish an open-source licence.Read 21 Oct 2026 · aderant.com
Limit: learning curve
Reviewers say the breadth and customization options can make initial setup and early use overwhelming.Read 21 Oct 2026 · getapp.com.au
Limit: performance and usability
Reported problems include occasional slowness, browser lockups, dual-screen quirks, duplicate creation and difficult backend configuration.Read 21 Oct 2026 · getapp.com.au
Limit: training
Some reviewers wanted more hands-on or follow-up training instead of mainly online sessions and videos.Read 21 Oct 2026 · getapp.com.au
Matter management
Matter and case tools combine client, matter, case, work-in-progress and accounts-receivable information in a dashboard.Read 21 Oct 2026 · aderant.com
Notable news: Sierra V2
Aderant’s timeline says Expert Sierra V2 launched in 2020 with single-tenant cloud access.Read 21 Oct 2026 · aderant.com
Practice management
Capabilities include conflict checks, file opening, client and matter management, WIP, billing, collections, trust management, reporting, and analytics.Read 7 Oct 2026 · aderant.com
Practice tools
Practice features include client intake, conflict checks, document creation, dashboards and collaboration tools.Read 21 Oct 2026 · aderant.com
Praise: billing and reporting
Reviewers report streamlined billing, strong accounts-receivable workflows and customizable reporting.Read 21 Oct 2026 · getapp.com.au
Praise: customization
GetApp reviewers praise extensive customization and the ability to tailor the system to firm needs after the initial learning period.Read 21 Oct 2026 · getapp.com.au
Praise: support
Several GetApp reviewers describe implementation representatives and support staff as responsive, helpful and knowledgeable.Read 21 Oct 2026 · getapp.com.au
Pricing availability
The product page asks firms to request a demo and does not publish a price.Read 7 Oct 2026 · aderant.com
Rating on Apple App Store
3.0 out of 5 from 6 ratingsRead 21 Oct 2026 · apps.apple.com
Rating on G2
4.5 out of 5 from 1 reviewRead 21 Oct 2026 · g2.com
Rating on GetApp
4.3 out of 5 from 10 reviewsRead 21 Oct 2026 · getapp.com
Reliability claim
Aderant’s solution sheet reports 99.997% uptime and says Sierra had 23% fewer support cases than its on-premises product over the prior three years.Read 21 Oct 2026 · aderant.com
Self-hosting
Aderant’s comparison presents Expert Sierra as including managed infrastructure, patching, backups, disaster recovery and monitoring, unlike self-hosted Expert responsibilities.Read 21 Oct 2026 · aderant.com
SOC 2 news
Aderant announced on January 19, 2024 that Expert Sierra completed a SOC 2 Type II examination with no exceptions reported.Read 21 Oct 2026 · aderant.com
System requirements
The FAQ does not list technical specifications; it directs customers to a separate Technical Requirements sheet.Read 21 Oct 2026 · aderant.com
Time and expenses
Lawyers can record time on any device, while expense claims can follow configurable routing and approval workflows.Read 21 Oct 2026 · aderant.com
Trust accounting
YesRead 20 Sep 2026 · aderant.com
Workflow automation
Administrators can build, test and deploy workflows adapted to client and matter intake rules.Read 21 Oct 2026 · aderant.com

Plans and prices

Expert Sierra Priced on request subscription pricing; contact Aderant for configuration and quote cloud-hosted legal practice and financial management · billing, rates, time, expenses, matter management, accounting, reporting, analytics Read 21 Oct 2026 · aderant.com

Every Aderant Expert Sierra plan and price →

Strong points and limits

Strong points

  • Practice, billing, and financial management tools
  • Time entry on any device
  • Configurable expense approval workflows
  • First AML checks in the practice workflow
  • SOC 2 Type 2 compliance and AWS hosting

Limits

  • Pricing is not published
  • A demo must be requested for pricing details

Who it suits

Expert Sierra is for law firms seeking one system for practice and financial management, including billing, trust management, time, and expenses. Its cloud operation and mobile access may suit firms whose lawyers need to enter time from different devices.

Verdict

Expert Sierra covers a broad set of law firm practice and financial workflows, with integrations and cloud-based operation. Firms should request a demo to discuss the unpublished price and assess the system for their needs.

Where Specifiction places it

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