I would agree with SK. In fact, sentences 2 and 3 from the post seem to conflict. If you could not find suitable housing then you did not reneg on the contract with the buyer. However you said you did reneg. If you did not attempt to find suitable housing and basically threw in the towel, then perhaps that is another story.
The RLA never is subject to anything but terms in the RLA. Thus a contingency in the purchase agreement is not part of the RLA. So I guess it all depends on the interpretation by whoever presides over the case.