Aderant Expert Sierra vs Orion ePay

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.

Orion ePay is an online payment solution for law firms using Orion software. Firms can email invoices with secure payment links or process client payments and trust deposits through Orion’s AR Manager. The product provides a firm-branded payment page and supports PayPal, Venmo and PayPal Pay Later, as well as card and ACH payments. Listed capabilities also include payment plans, a client payment portal, trust account support and reconciliation tools. Orion presents ePay as integrated with its billing and financial management modules, with processing connected to ePrebill Manager. The product page lists next-day funding, and Orion says firms can start accepting payments within a day by beginning the application process inside Orion. Its January 2026 article describes bank-grade security, PCI compliance and built-in trust account handling. Pricing requires contacting Orion; a brochure says there are no monthly fees or contracts, but does not state transaction rates. Orion provides a knowledge base with product answers, tutorials and video learning, and accepts support requests by form or email. The product is available on Android, iOS, macOS, web and Windows.