Aon Risk Solutions manages over 1,250 captives globally, focusing on cost efficiencies and control for real estate companies, with nearly 80% preferring single parent captives. Their 2012 captive management survey highlights property and liability coverage as common insurances for these captives. To evaluate the potential of captives, Aon suggests a feasibility study, with a scoring system indicating the likelihood of value addition based on corporate finance and insurance costs.