Thomas H. Lee Partners, a private equity firm, agreed to acquire AbacusNext, a vertical SaaS provider for legal, accounting and compliance-focused professionals, from Providence Strategic Growth. Financial terms were not disclosed. “This partnership with THL will enable us to accelerate our investment in innovative SaaS products with integrated payment processing, allowing us to continue to offer a market-leading software suite. Thank you to PSG for their support as we grew to become a leader in the legal and accounting markets,” Scott Johnson, AbacusNext CEO.