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Point a retrieval engine at proposal writing, and let people review output instead of producing it. Aimed at legal paralegal teams, so the work stops following people home.
In short: Legal Proposal Builder is a retrieval engine aimed at legal paralegal leads, covering proposal writing. It scores 71/100 on AltF Ideas, carried by moat (96) and held back by feasibility (47). Typical pricing is $1.3k–$27k per customer per year, with a first version reachable in six to twelve months for $30k–$87k.
Legal teams lose proposals rebuilt from scratch that are 80% identical. In most legal businesses this job has never had software written for it. Most operators assume this is simply the cost of doing business.
A narrow retrieval engine scoped to proposal writing alone — no platform, no migration, no six-month rollout. Revenue is seat saas, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $1.2B |
|---|---|
| Category growth (CAGR) | 10% |
| Annual contract value | $1.3k – $27k |
| Pricing model | Seat SaaS |
| Time to first revenue | 46 days |
| Startup cost to MVP | $30k – $87k |
| Build effort | 6-12 months |
Retrieval over private documents became cheap enough to run per query. Legal is growing at roughly 12% a year, and this job has not been re-tooled since it was designed around paper.
| Who | The gap |
|---|---|
| The incumbent suite | Sells a platform; this job is one neglected module inside it |
| A vertical competitor | Priced and scoped for enterprise accounts, not this segment |
| A spreadsheet | The real incumbent in most of the market, and it is free |
The buying cycle is slower than the build, so runway assumptions matter more than code.
An idea you cannot act on is entertainment. Four concrete steps, wired to tools already running on AltFTool.
Score problem urgency, willingness to pay, and reachable audience size before writing any code.
→ AltF IdeaLabAsk how they handle this today and what it costs them. If nobody can quantify the pain, the demand score is optimistic.
→ Survey BuilderCheck availability, DNS, and email authentication in one pass so your first outreach lands in an inbox.
→ AltF DomainOpsStand up intake, the review queue, and billing before you build the clever part.
→ AltF Flow