GCP Capital Group LLC, one of the nation's most active companies specializing in investment real estate finance, has arranged mortgage financing in the aggregate amount of $3.85 million for the following properties: $2.3 million for a four-story elevator apartment building containing 46 units. Paul Greenbaum, managing member of GCP Capital Group, arranged the financing. $1.55 million for a three-story apartment building containing 32 units, located in Orange, N.J. Greenbaum arranged the financing.