How SulAmerica Produces Lawsuit Answers Using Structured Data from 500,000 Documents

SulAmerica was founded in 1895 and is one of the three largest health insurance providers in Brazil, offering coverage to more than 7 million people across the country. The company was acquired in 2023 by Rede D'Or (BVMF: RDOR3), the largest hospital conglomerate in Brazil, strengthening its market position by integrating health plans with hospital services.

"Enter provided us with visibility into unstructured information available in hundreds of thousands of internal documents. This allowed us to make legal decisions based on real data from our operations.."

Jonas Pulcheri
General Counsel, SulAmerica

When Enter first visited SulAmerica, it was positively impressed by the company's digital maturity and its pioneering vision for using artificial intelligence across all its business areas.

SulAmerica's legal department stood out by embracing digital transformation early on, demonstrating a genuine commitment to innovation and operational excellence. To achieve this, the legal team had a clear objective: to enrich its database to better understand the reasons behind lawsuits against SulAmerica and how to argue their cases more effectively.

Given this scenario, the legal team’s management decided to establish a partnership with Enter, allowing its artificial intelligence to read and interpret each lawsuit filed against the company, identifying winning defense strategies. This initiative positions SulAmerica as a benchmark in the practical application of AI in the Brazilian legal market.

Enter's AI platform analyzed more than 30,000 lawsuits filed against SulAmerica and reviewed over 500,000 documents—cover to cover—to structure data that would support decision-making.

Immediately, some strategies emerged to combat predatory litigation, including, for example, contesting medical prescriptions without scientifically proven evidence.

1. The same lawyers were behind most lawsuits

• A single lawyer was responsible for filing more than 1,000 lawsuits against SulAmerica, indicating a coordinated effort rather than just isolated claims.
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• Enter's AI identified dozens of lawyers who, individually, filed more than 50 lawsuits against the company within a short period.

2. Recurring Patterns of Fraud in Medical Prescriptions

• Many lawsuits featured nearly identical medical reports, often issued by the same professionals.

To ensure the consistent application of its new legal strategy, SulAmerica partnered with Enter to create a robust database containing all relevant information, especially in light of the fraud crisis that has plagued the supplementary health sector in recent years.

With this new database, enriched with essential information to defend SulAmerica’s interests, Enter began generating AI-powered, automated, and individualized responses for each new lawsuit filed against the company.

Although generated by artificial intelligence, these responses are not merely standardized. On the contrary, they are highly personalized and tailored to the context of each case, ensuring a level of "legal craftsmanship" in their content. Enter’s AI analyzes all case documents, cross-referencing them with SulAmerica’s internal evidence extracted from the new database. As a result, it can generate a lawsuit answer that:

1. Detects predatory litigation practices
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2. Flags the presence of various types of fraud
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3. Ensures that essential defense arguments are included, systematically refuting each claim made by the plaintiffs

SulAmerica has already redefined its legal strategy in the healthcare sector. Now, the company aims to consolidate its data-driven approach to litigation, seeking to maximize its win rate by expanding the use of Enter’s AI in the defense of its new lawsuits.

"Enter has already generated hundreds of automated yet personalized responses for real SulAmerica cases — and this is just the beginning."

Mateus Costa-Ribeiro
Enter's Co-founder and CEO