I've made an unconditional offer on a property, and I'm not sure what to make of this. Haven't come across a situation like this before. The vendor is very keen to sign as they are happy with the offer but the agent is saying their broker has advised them not to sign the contract to sell until their contract to purchase their new house goes unconditional which is in another 4 days. Something about them using the equity from the house I'm trying to purchase for their new purchase and it might mess up the unconditional approval on their new loan. I'm obviously not happy that the property is going to sit on the market for another 4 days (including a weekend open), but I'm not sure what else I can do. Does anyone smell a rat? What would you do?