Conversation so far:
What is Hampstead?
This job was as a part-time assistant in Booklovers' Corner, a second-hand bookshop in Hampstead run by Francis and Myfanwy Westrope
When did George Orwell start in Hampstead?
Did Goerge Orwell enjoy the job at booklovers' Corner in Hampstead?
George Orwell worked at the shop in the afternoons and had his mornings free to write and his evenings free to socialise
Did George Orwell stay at the booklovers' Corner in Hampstead long?
At the beginning of 1935 he had to move out of Warwick Mansions

Question: Why did he have to move?
Self-contained rewrite: Why did George Orwell have to move out of warwick Mansions?