My landlord served me two month notice and during that time he marketed the house whilst we were here ..it sold and we were given section 21...we in the meantime secured a mortgage and bought a house it's all going through searches and surveys done 3 people all ready should be 5 weeks until completion ...now we obviously don't want to move twice so we have two weeks left here so have told the agent we will be approx 5 weeks away and won't be leaving on end date but approx 4 weeks after ...the landlords agent now has basically threatened to sue for breach of contract if the sale falls through because we don't leave on final date as the buyer won't wait !