The invention provides a process for pairing off parties on a real estate and housing market such that the parties are enabled to limit and manage economical risks associated with transactions and contracts. A potential buyer or tenant is enabled to submit an earmarking advertisement defining constraint requirements for an object being searched for. A potential seller or landlord is enabled to submit an anonymous offering advertisement that includes information about an object on sale or on hire. A service provider checks whether the object on sale or on hire has potential to match the constraint requirements of the object being searched for. If the object being offered has potential to match the constraint requirements, the service provider contacts the potential seller or landlord and/or the potential buyer or tenant for inquiring about willingness for further negotiations.
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