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Creating a High-Stakes Intake Site in 4 Weeks

How we built a mission-critical intake platform - verified data, automated contracts, and an embeddable widget - in four weeks.

Feb 11, 2026 6 min read
Case Study High-Value Intake Automation

Disclaimer: All material in this post has been used with permission. Certain details have been modified for client confidentiality.

When you're dealing with transactions worth millions of dollars, the standard "contact us" form doesn't cut it. High-stakes deal-making requires more than just a name and an email; it requires verified data, legal precision, and an ironclad audit trail.

We recently partnered with a client to build a mission-critical High-Value Intake Site designed to move million-dollar deals from "initial interest" to "signed contract" with zero manual friction. The challenge? Build it, secure it, and launch it in exactly four weeks.

Here's how it went:

Step 1. Efficient Data Entry

Manual data entry is where high-value deals go to die — or worse, where errors lead to massive liability. To solve this, we moved away from self-reported data in favor of direct verification.

  • OAuth Integration: Instead of asking users to upload screenshots of their accounts, we built direct OAuth connections to pull historical data. This ensures that the platform is working with "ground truth" data directly from the source.
  • Multi-Entity Logic: Million-dollar businesses are rarely simple. Our architecture supports complex, multi-business hierarchies, allowing a single submission to encompass multiple entities and their respective account data.
  • MapBox Validation: We integrated MapBox for strict address validation and location-based blocking to ensure compliance with regional restrictions.

Step 2. Automated Document Generation

The biggest bottleneck in any deal is the legal "paperwork." Manual contracts mean back-and-forth, missed fields, and delays. We treated contracts as code — instead of drafting and editing documents by hand, we generate the right agreement from the data we already collect and send it for signature in one flow.

Using the EverSign API, we built a dynamic contract generation engine. Based on the inputted data and information from the OAuth integration, the platform automatically generates and prefills custom legal contracts. This saves a significant amount of time, especially if the user is submitting several different businesses.

Users go from submitting their data to digitally signing a verified agreement in a single session — no back-and-forth emails, no "let me check with legal," and no manual PDF editing — all in less than a minute.

Step 3. Analytics

A deal is only as good as the team's ability to track it. We didn't just build a portal; we built an orchestration layer between the frontend and the client's sales operations.

  • HubSpot Sync: We mapped every intake step to a custom HubSpot CRM pipeline. As a user progresses through the portal, deals are automatically created and moved through stages in real-time.
  • Daily Intelligence: To keep the operations team informed without them needing to check the dashboard, we implemented daily CSV exports of qualified leads, delivered automatically.
  • State Management: Built on PostgreSQL and hosted on AWS, the system ensures that high-value submissions are never lost, even if a user loses connection mid-process. This combination of PostgreSQL and AWS hosting is our "bread and butter" — we knew we could spin this up fast and effectively, helping us hit our timeline milestones.

Step 4. The Embeddable Widget

To maximize the deal flow for our client, we couldn't just build a standalone site. We created a mobile-responsive, embeddable widget.

This allows the client's partners to drop the entire intake funnel onto their own domains. We made the widget dead-simple for partners to adopt: a copy-paste embed with a <div>, a script tag, and a single init() call — no build step or framework dependency required. Partners pass in their own brand colors, which propagate through CSS custom properties to restyle buttons, borders, and accents so the widget looks native to their site.

Every widget instance also carries a unique partner ref that flows through the entire funnel — from initial estimate, through the multi-step form and e-signature, all the way into HubSpot as the referral source on the deal record — giving the client full visibility into which partners are driving the most qualified leads.

Behind the scenes, we used Sentry for error monitoring and session recordings to ensure that no matter where the widget is embedded, the user experience remains flawless and the data remains secure.

From Kickoff to Production in 28 Days

Building for millions of dollars in value requires a balance of speed and caution. By leveraging a modern stack and taking advantage of the newest AI tools, we were able to deliver a production-ready platform in a four-week sprint.

The platform is now live, onboarding clients and automating the generation of complex claims and contracts that used to take days of manual labor.

Are you looking to automate high-complexity business processes or high-stakes data intake? We've got the blueprint. Reach out to the team at Fan Pier Labs.