Our neighbours from hell have at last moved out with their poor abused dogs. The problem is we share a front garden and whilst looking for the 4 cats they have abandoned I went into their open house and realised its really infested ( I was covered within 20 seconds) with fleas. We are hoping to buy the house. The owners have been really unreasonable over the years but at last we have struck a deal. Am I being unreasonable to request that they sort out the fleas first , or should I just add it to the long list of things we have had to endure from them and keep quiet so we can buy the house with no more disputes and finally get shot of them.