The Lynd Company, a San Antonio-based investment firm focused on class A and B commercial assets, continued its expansion into South Florida, taking a 50 percent stake in Easton Management, the property management division of Doral-based Easton Group. The new company will be called Easton Lynd Management. Details of the deal were not disclosed. Lynd manages medium- and large-sized apartment complexes with 35,000 units under management in Texas and the Southeast. Easton Lynd Management will provide third-party commercial property management services in Florida and 13 other states.