ESILaw is a legacy desktop application being discontinued by Dye & Durham. If you're planning your ESILaw exit, Atticus offers a modern cloud platform with LSO trust accounting, AI document analysis, and flat pricing for your whole firm.
Start Free TrialESILaw was a Canadian legal practice management and accounting platform that was a popular choice for small to mid-size Canadian law firms. It was acquired by Dye & Durham, the Canadian legal technology company. ESILaw offered trust accounting compliant with Canadian law society rules, time tracking, billing, and basic matter management.
Dye & Durham has been transitioning ESILaw users to its newer platforms and the ESILaw desktop product is being phased out. ESILaw has no AI capabilities, no modern cloud architecture, and as it is being discontinued, there is no future development roadmap for new features.
For Ontario firms currently on ESILaw, Atticus offers the most direct modern replacement: cloud-native with LSO By-Law 9 trust accounting, AI document analysis, an AI practice assistant, and flat pricing — without migrating to an enterprise Dye & Durham platform sized for a much larger firm.
| Feature | ESILaw | Atticus |
|---|---|---|
| LSO By-Law 9 Trust Accounting | Yes — legacy Canadian trust accounting | Native — receipt, disbursement, reconciliation |
| Deployment | Legacy desktop application being discontinued | Modern cloud-native, browser-based, always current |
| AI Document Analysis | No | Every document summarized and entity-extracted |
| AI Practice Assistant | No | Atticus Chat with 7 action tools |
| Matter Management | Basic file/matter management | Full matter records with documents and AI search |
| Canadian Data Residency | Desktop: local storage; migration to Dye & Durham platform | Yes — Canadian data residency, PIPEDA compliant |
| Product Future | Being discontinued — Dye & Durham urging migration | Active development — new AI and practice features monthly |
| Pricing | Legacy perpetual license + annual maintenance fees | $149 CAD/month — per lawyer |
| Target Market | Canadian law firms — legacy desktop | Ontario solo and small law firms exclusively |
Dye & Durham is sunsetting ESILaw. If you're on ESILaw, migration is not optional — it's a question of timing. Atticus is a purpose-built Ontario alternative with an active product roadmap.
Atticus AI processes every document — contracts, court documents, correspondence — extracting entities, deadlines, and action items automatically. ESILaw has no AI and will receive no further AI development.
ESILaw users understand trust accounting. Atticus implements the same LSO By-Law 9 compliance model — receipts, disbursements, reconciliation — in a clean modern interface with full audit trail.
ESILaw is a desktop application with local data storage. Atticus is cloud-native — your data is always backed up, accessible from any browser, and never lost to a hard drive failure.
ESILaw's licensing model includes annual maintenance fees and per-user costs that scale. Atticus is $149 CAD/month per lawyer regardless of headcount — predictable and simple.
Legacy desktop legal accounting
Modern Ontario practice management
Per lawyer per month
Don't wait for ESILaw to be shut off. Migrate to a modern Ontario platform with trust accounting, AI, and flat pricing — purpose-built for small Ontario firms.
Start Free TrialNo credit card required · $149 CAD/month after trial