Both deals were struck under the stewardship of Invesco Realty Advisors, which has owned 1-5 Sassacus Dr. since 2000. Consummated in 2004, the 51,000-sf Relizon lease even featured the same brokerage firms in Richards Barry Joyce & Partners representing the Dallas-based landlord and Cresa Partners bringing in the two tenants. Cresa VP David Ross from the firm's Boston office and colleague David Reinhart were involved in both leases. RBJ principal John Lashar, who also negotiated the Relizon lease for Invesco, was on that end again in the WorkflowOne lease, joined in the latest deal by RBJ VP Paul Leone.

Constructed in 1989, 1-5 Sassacus Dr. has a mix of office and industrial space. The property has quick access to major roadways including Interstate 495, the Massachusetts Turnpike and Route 9. The lease to WorkflowOne is among the largest in the I-495/Mass Pike submarket this year, with others including Valeritas taking 46,000 sf at 800 Turnpike Rd. in Shrewsbury; Datavantage leasing 27,000 sf at 1800 West Park Dr. in Westborough; and a pair of 17,000-sf leases, one by Systems Maintenance Services in Hudson and another by Boston Scientific Corp. in Natick.