Not every AI tool works for every practice area.

Not every AI tool works for every practice area. A tool that's perfect for contract lawyers might be useless for litigators. A platform that transforms M&A due diligence won't help a family law practitioner. Managing partners need a clear map: which tools work for which practices.

This is that map. Every major legal AI tool, organized by the practice areas where it actually delivers value. No theoretical use cases — only tools with proven adoption in each practice area.

Litigation: Research, Discovery, and Case Strategy

Best tools for litigators:

| Tool | Use Case | Price Range | |------|----------|-------------| | Harvey AI | Legal research, brief drafting, case analysis | $1,500-$3,000/mo | | CoCounsel | Westlaw-integrated research, timeline creation | $100-$300/mo add-on | | Lexis+ AI | Lexis-integrated research, drafting | $100-$200/mo add-on | | Claude Pro | Brief drafting, deposition prep, case analysis | $20/mo | | Everlaw | E-discovery, document review, trial prep | Enterprise pricing | | Relativity aiR | Large-scale document review, predictive coding | Enterprise pricing | | Logikcull | Budget e-discovery for smaller cases | $500-$2,000/mo | | Lex Machina | Litigation analytics, judge/counsel data | $400-$800/mo |

The litigation stack: CoCounsel or Lexis+ AI for research + Claude for drafting + Everlaw or Relativity for discovery + Lex Machina for strategy. Total: $520-$4,100/month per litigator.

Transactional/Corporate: Contracts, M&A, and Deal Work

Best tools for transactional lawyers:

| Tool | Use Case | Price Range | |------|----------|-------------| | Luminance | Contract review, redlining, M&A due diligence | $2,000+/mo | | Spellbook | Contract drafting in Microsoft Word | $500-$1,000/mo | | Kira Systems | Due diligence, provision extraction | Enterprise ($50K+/yr) | | Ironclad | Contract lifecycle management | Enterprise ($50K-$150K/yr) | | Juro | Collaborative contract drafting | $500-$1,500/mo | | Harvey AI | Deal analysis, regulatory research | $1,500-$3,000/mo | | Claude Pro | Contract analysis, first drafts, clause review | $20/mo | | DealRoom | M&A deal management and coordination | $1,500+/mo |

The transactional stack: Luminance for contract review + Spellbook for drafting + Claude for analysis. Total: $2,520-$3,020/month per lawyer. For M&A specialists, add Kira and DealRoom.

IP, Tax, and Specialized Practices

Intellectual Property:

| Tool | Use Case | Price Range | |------|----------|-------------| | PatSnap | Patent search, prior art, landscape analysis | $500-$2,000/mo | | Lex Machina | IP litigation analytics | $400-$800/mo | | TrademarkNow | Trademark clearance and watching | Enterprise pricing | | Claude Pro | Patent drafting, office action responses | $20/mo |

Tax:

| Tool | Use Case | Price Range | |------|----------|-------------| | Bloomberg Tax AI | Tax research and analysis | $500-$1,000/mo | | Thomson Reuters Checkpoint AI | Tax compliance and research | $300-$700/mo | | Harvey AI | Complex tax analysis and planning | $1,500-$3,000/mo | | Claude Pro | Tax memo drafting, calculation verification | $20/mo |

Immigration:

| Tool | Use Case | Price Range | |------|----------|-------------| | Docketwise | Immigration case management with AI | $69-$149/mo | | Claude Pro | Application drafting, RFE responses | $20/mo |

Small Firm and Solo Practice Areas

Personal Injury:

| Tool | Use Case | Price Range | |------|----------|-------------| | EvenUp | Demand letter generation from medical records | Enterprise pricing | | Filevine | PI case management with AI features | $100-$200/mo | | Claude Pro | Demand letter drafting, medical record analysis | $20/mo | | CaseFleet | Timeline and fact analysis | $99-$199/mo |

Family Law:

| Tool | Use Case | Price Range | |------|----------|-------------| | Clio Duo | Practice management with AI | $100-$150/mo | | Claude Pro | Agreement drafting, research | $20/mo | | Smokeball AI | Automated document generation | $149-$199/mo |

Criminal Defense:

| Tool | Use Case | Price Range | |------|----------|-------------| | Clio Duo | Practice management with AI | $100-$150/mo | | Claude Pro | Motion drafting, case research | $20/mo | | Lexis+ AI | Criminal case law research | $100-$200/mo add-on |

The common thread: Claude Pro ($20/month) appears in every practice area because it's the most versatile, affordable AI tool available. It's the universal baseline.

The Practice Area Decision Matrix

If you could only buy one AI tool per practice area, here's the pick:

- General litigation: CoCounsel (if on Westlaw) or Lexis+ AI (if on Lexis) - Complex litigation: Harvey AI - Contract/transactional: Luminance - M&A: Kira Systems - IP prosecution: PatSnap - IP litigation: Lex Machina - Tax: Bloomberg Tax AI - Compliance: Harvey AI - Personal injury: EvenUp - Family law: Clio Duo - Criminal defense: Claude Pro - Immigration: Docketwise - Employment: Harvey AI - Real estate: Clio Duo + Claude Pro - Estate planning: Smokeball AI + Claude Pro

And if you could only buy ONE tool across all practice areas: Claude Pro at $20/month. It's not the best at anything, but it's competent at everything. Start there.

The Bottom Line: Match the tool to the practice, not the marketing. A litigator buying Luminance or a transactional lawyer buying Everlaw is wasting money on the wrong specialty. Start with Claude Pro for universal capability, then add one practice-specific tool based on where you spend the most non-billable time. That two-tool stack covers 90% of what most lawyers need from AI.