PerfectLaw All-in-One Software

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Law Firm Tech Answers

  1. Home
  2. Legal Technology Answer Center
  3. Legal Software Migration
  4. Replacing Legacy Legal Software

How Do Law Firms Replace Legacy Legal Software?

Law firms replace legacy legal software by documenting current workflows, selecting a target platform, mapping historical data, cleaning and converting that data, validating results, training users, and planning a controlled go-live.

Key Takeaways

  • Define migration scope and requirements before finalizing the target system.
  • Use test conversions and formal validation to reduce risk.
  • Treat migration as both a data project and a business-process project.

Why does this matter during migration?

A practical approach starts with the current process, identifies the source of risk or inefficiency, applies the right technology or workflow change, and then validates the result with measurable outcomes.

What should be planned before conversion?

Firms should document source systems, data ownership, custom fields, workflows, integrations, security, accounting balances, document repositories, reporting needs, retention requirements, and go-live dependencies.

How should firms validate the result?

Validation should combine technical checks with user review, financial reconciliation, document sampling, record counts, matter relationship checks, security testing, and formal approval before final cutover.

How does PerfectLaw relate to this topic?

PerfectLaw performs legal software conversions as part of implementation projects and can consolidate practice management, document management, billing, accounting, and reporting into an integrated target environment.

Frequently Asked Questions

Should every historical record be migrated?

Not necessarily. Firms should determine what must remain operational, what must be retained, and what can be archived.

How important are test conversions?

They are one of the strongest ways to identify mapping, data-quality, financial, and workflow issues before final go-live.

Who should participate in migration planning?

Firm management, accounting, IT, records, administrators, and representative end users should participate where relevant.

Related Answers

  • What Should Law Firms Look for When Replacing Practice Management Software?
  • How Long Does a Legal Software Migration Take?
  • What Data Should Be Migrated to a New Legal System?
  • How Can Law Firms Reduce Software Migration Risk?

Learn More About PerfectLaw

Explore how PerfectLaw connects legal practice management, document management, billing, accounting, reporting, and workflow tools for law firms.

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Last updated: September 2026

PerfectLaw

6100 Waterford District Drive
Suite 350
Miami, Florida 33126

Toll Free: 1.800.749.6200
Phone: 305.444.6200
Email: info@perfectlaw.com

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Front Office

  • Attorney Information Manager (AIM®)
  • BI Analytics Viewer
  • Customer Relationship Management (CRM)
  • Data Browser Search
  • Document Management
  • Document Assembly
  • Matter Intake Workflow
  • Paperless ePreBilling
  • Paperless Workflow & OCR
  • Records Management

Back Office

  • Accounts Payable
  • Allocated GL
  • AP Check Request
  • AP Invoice Imaging
  • Billing Compliance
  • BizRadar - Business Intelligence
  • Collections
  • Conflict Checker
  • General Ledger
  • Reporting
  • Time & Billing
  • Trust Accounting

Mobile & Other

  • Cloud SaaS
  • eServices
  • iSlips
  • plSync


What's New?

  • Intelligent Time Capture
  • AIM365 - Case Management
  • Inbox Email Profiles
  • webDMS - Document Management
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