SPRINGFIELD, ILL. — Foresite Realty Partners LLC has negotiated the sale of Bally Vaughn Apartments in Springfield in central Illinois for an undisclosed price. The 72-unit property consists of 60 two-bedroom and 12 three-bedroom units in four buildings. The property has been vacant for the past four years. Kristen Keehnast and Ryan Nelson of Foresite Realty represented the seller in the transaction. The buyer, an out-of-state investor, plans to rehab the property.