N.J. Stat. § 40:48-20: Joint acquisition of lands, buildings and equipment; officers and employees

For the purpose of carrying into execution any such joint contract any municipality, as a party thereto, may acquire lands as tenants in common by purchase, gift or condemnation and erect and equip buildings thereon and may acquire and hold any property in common, appoint such officers and employees as may be necessary for the joint enterprises and generally enter into any contracts which the municipality or municipalities and the board of chosen freeholders is authorized to enter into separately.