1. A computer-readable storage medium tangibly embodying an information model for managing party and property information from multiple data sources in a single data structure, the information model comprising: a plurality of legal party objects including first and second legal party objects to represent first and second legal entities, respectively, the first and second legal entities being at least one of an individual, an organization and a public agency; a plurality of revenue-object objects including a revenue-object object representing a taxable item, wherein the first and second legal entities have a tax responsibility with respect to the taxable item; a plurality of legal party role objects including first and second legal party role objects to designate entity role types and to connect the first and second legal party objects respectively to the revenue-object object, whereby each of the first and second legal party role objects maintains a relationship between the first and second legal party objects and the revenue-object object; and a plurality of objects associated with the first legal party object, wherein one of the first plurality of associated objects is a legal party communication object to represent a manner of contacting the first legal entity, the legal party communication object having a plurality of associated communication objects, wherein the legal party communication object is inheritable by an alternate communication object.