Renting in leeds

Hi there we are a family of 4 needing to move because our landlord is having to sell all his properties, we have until 31st may to move. The problem is both the mrs and me have ccjs but have never missed or even been late with a rent payment, we have a glowing reference from our landlord and his details if a new landlord wants to check. We are looking for a 3 or 4 bedroomed house in south leeds or morley. Please can somebody help. Thank you