Families that use family office services expect family office professionals to help them mitigate risks, both investment and concentrated illiquid holdings, such as real estate and closely held businesses. Sometimes overlooked is how to mitigate the risk of the ownership of artwork, numismatics, jewelry, cars and other collectibles. Risk mitigation for these treasures begins with knowing what your client has, aggregating the individual items into collections and beginning the management of the items as a collection.