Quantum Real Estate Advisors, Inc. has brokered the sale of Ryan Plaza, an approximately 15,500-square-foot multi-tenant strip center located at 1534 E. Algonquin Road, Algonquin, Illinois. The property sold for $2.4 million. The buyer, Curbline Properties, is a public REIT. The seller is a REIT based in the Southeast. Dan Waszak, Executive Vice President and...