Hi Mary
Welcome to the forum.
You might want to have a look at the following FAQ which explains where everything is;
www.benefitsandwork.co.uk/guides-for-claimants/faq/forum.
Your question is outside the remit of the forum but |I will try and give you a few pointers.
You will need to contact your local Welfare Rights Organisation:
advicelocal.uk, Shelter may also give you advice
england.shelter.org.uk/get_help The first question you will be asked, 1) did you claim any housing element on your current property, 2) did you receive rent for the Lancashire property?
Gary