If you can't find sufficient reasons to legally terminate your contract, then you are into breach of contract, for sure. For the breach of contract, the seller has two options: 1. terminate the contract and sue for damages;or 2. continue the contract( asking to complete the contract) and if you fail to complete, the seller sues for specific performance( ask the court to force you to buy the property. But in common law, suing for specific performance seems very unlikely unless that house is very unique and unsellable,(no similar/substituteable type of houses in market). A house by a railway is not unique at all. Thus the court won't force you to buy, in general. As for the seller's suing the damage, the common law set two conditions: 1. require the seller to take responsibility to minimize the foreseeable loss, that is, immediately relisting the house; and 2.make the best effort to sell the house at a fair market price, which takes time and is somewhat difficult for sellers. The damages awards are usually the reselling expense and the price difference.But the process of claiming the damage is way too long and tedious, compared to the money to be claimed and effort. The best way is find another reliable realtor in your area to consult your case with and ask him /her to help solve the dispute in your favor by promising awarding him your exlusive buyer's agency agreement. Another way is to directly talk to the realtor's brokerage firm and seek consultation and assistance, because the realtor represents the firm to provide servie to you. Act quickly and precisely. Good luck --As I have some difficulty to post, please help post my suggestion in Jiatan so that public can get some idea about it.