Methods and apparatus are described for facilitating a transaction corresponding to real property between a seller and a buyer via a network. A negotiation relating to the real property between the buyer and the seller is facilitated via the network. Access by at least one of the buyer and the seller via the network to a plurality of real estate services is provided. Each of the plurality of real estate services relates to an aspect of the transaction, and each of the plurality of real estate services is necessary for the transaction to progress.