The verdict in three sentences
The real timeline of a legal software rollout rarely hinges on development: it hinges on data migration and adoption. For a 12-seat firm in Dubai, budget 14 to 18 weeks custom-built versus 4 to 8 weeks for a configured vertical package. A sound plan secures acceptance milestones and targets 80 % adoption at day 90, otherwise the project stalls.
The phase-by-phase timeline (custom vs vertical)
A custom rollout chains five sequential phases with partial overlaps. A configured vertical compresses development but keeps migration and training incompressible. Here is the typical 2026 plan (order of magnitude).
| Phase | Custom-built | Configured vertical | Key deliverable |
|---|---|---|---|
| Scoping / specs | 2-3 weeks | 1 week | Approved requirements |
| Development / config | 8-10 weeks | 2-3 weeks | Internal acceptance |
| Data migration | 2-4 weeks | 1-2 weeks | Verified cutover |
| User training | 1-2 weeks | 1 week | Self-sufficient team |
| Acceptance + go-live | 1 week | 1 week | Signed sign-off |
| Total | 14-18 weeks | 4-8 weeks | Production |
Data migration is the underestimated item: moving 8,000 legacy matters, schedules and documents from an old tool costs 6,000 to 12,000 USD and drives the cutover date.
Milestones, deliverables and day-90 adoption
A rollout is steered on contractual milestones, not a single date. Each milestone releases a payment tranche and a verifiable deliverable. Real adoption is measured at day 30, 60 and 90.
| Milestone | Week | Deliverable | % payment |
|---|---|---|---|
| M1 Kickoff | W1 | Requirements | 30 % |
| M2 Internal acceptance | W10-12 | Testable build | 30 % |
| M3 Migration validated | W13-15 | Migrated data | 20 % |
| M4 Training | W16 | Trained team | 10 % |
| M5 Go-live | W17-18 | Sign-off | 10 % |
| Day-90 adoption | W30 | Rate >80 % | — |
An adoption rate below 60 % at day 90 signals a training or usability gap: plan a catch-up session rather than letting usage fall back to spreadsheets.
Mini case study
Ms. Rahman, managing partner of a 12-seat law firm in Dubai, wants to cut over before the new legal term. Custom-built, the realistic plan starts in April for a mid-August go-live: 16 weeks. Migrating her 6,500 matters from a legacy tool is quoted at 9,000 USD. By locking kickoff in the first week of April and blocking two training days in July, the firm reaches 85 % adoption at day 90 and avoids duplicate data entry estimated at 1.5 h/day/staff, roughly 18 h/week saved across 12 seats once at cruising speed.
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FAQ
How long does a custom rollout take in 2026?
Between 14 and 18 weeks for a 12-seat firm, scoping included. A configured vertical drops to 4-8 weeks but offers less domain specificity.
How much does data migration cost?
Between 6,000 and 12,000 USD depending on volume and legacy data quality. It is the item that most drives the cutover date.
When should adoption be measured?
At day 30, 60 and 90. Above 80 % at day 90 validates the project; below 60 %, a catch-up session is required.
Can the timeline be accelerated?
Yes, parallelizing migration and development saves 2-3 weeks. But compressing acceptance is risky and generates post-go-live fixes.
How many training days should we plan?
Two days for 12 seats, plus a half-day catch-up at day 30. Under-sizing training is the leading cause of failed adoption.
Let's scope your project. Tell us your seat count, current tool and matter volume to migrate: we'll build a milestone plan with a firm go-live date. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
