Why Mid-Sized Law Firms Need the Second Wave of AI
The legal industry is at an inflection point. The first wave of AI promised to "assist" lawyers—offering suggestions, ideas, and responses.
The legal industry is at an inflection point. The first wave of AI promised to "assist" lawyers—offering suggestions, generating ideas, and providing research insights. But for mid-sized law firms facing margin pressure and rising client expectations, assistance isn't enough. They need completion.
The First Wave: AI as Assistant
First-wave AI looked promising:
Generic chatbots that answered questions but left you to structure outputs
Research tools that surfaced cases but didn't build memos
Drafting assistants that suggested language but didn't produce client-ready documents
The problem? This approach doesn't solve how legal work actually happens. Associates don't struggle because they don't know what questions to ask. They struggle because they're drowning in documents, extracting terms manually, and reformatting outputs for partners.
First-wave AI doesn't solve that problem. It makes lawyers better prompters, not more productive professionals.
The Second Wave: AI as Executor
Second-wave AI is fundamentally different. It doesn't assist—it executes.
First-wave AI asks: "How can I help you draft this?"
Second-wave AI delivers: "Here's the draft, in your format, with tracked changes, ready for your review."
The difference isn't incremental. It's categorical.
Why Mid-Sized Firms Need It Now
Mid-sized law firms (10-300 attorneys) face unique pressures:
Fixed-Fee Economics: Clients demand BigLaw quality at fixed prices, but you don't have the leverage to push back. First-wave AI saves 30 minutes per task. Second-wave AI saves 10 hours per matter.
Capacity Constraints: You can't hire fast enough. First-wave AI makes associates slightly faster. Second-wave AI gives them 3x capacity.
Partner Time: Partners can't afford hours reformatting associate work. First-wave AI still requires heavy editing. Second-wave AI delivers partner-ready outputs from day one.
Competitive Pressure: BigLaw is investing millions in AI. You can't outspend them, but you can out-execute with the right platform.
What It Actually Looks Like
Here's a concrete example: contract review for an M&A deal.
First-Wave Approach:
Upload documents → Ask AI to extract terms → Copy-paste to Excel → Format manually → Review → Reformat after feedback
Time saved: 2-3 hours | Lawyer still doing: 80% of the work
Second-Wave Approach:
Connect AI to deal folder → AI extracts terms, builds comparison table, identifies red flags → Outputs in Word with tracked changes → Structured chronology auto-generated
Time saved: 8-10 hours | Lawyer now doing: Review and judgment (the valuable work)
The ROI Case
Let's do the math for a 50-attorney firm:
Current State:
15 associates × 20 hours/week on document work × $400/hour = $6M annual capacity
With Second-Wave AI (70% time savings):
10,500 additional hours/year = $4.2M value created
Even if you don't bill every saved hour, the capacity gain is transformational. You can take on more fixed-fee work profitably, reduce burnout, deliver faster for clients, and free partners for business development.
Payback period: Under 6 months.
Why Now?
Mid-sized firms have a narrow window:
2023-2024: First-wave experimentation
2025: Second-wave emergence
2026: Second-wave adoption ← We are here
2027+: Table stakes—clients will expect it
The firms that adopt second-wave AI this year will have sustainable advantages: 3x associate capacity, profitable fixed-fee economics, faster delivery, partners focused on judgment instead of formatting.
The firms that wait will face higher costs to catch up, talent disadvantages, client pressure, and margin compression.
The Bottom Line
First-wave AI made lawyers better at prompting. Second-wave AI makes lawyers better at lawyering.
For mid-sized firms, the choice is clear: assistance isn't enough. You need execution.
The second wave is here. Will you ride it, or will it leave you behind?

