Complex sentence: Soon they are living in a basement apartment, recently vacated by a local prostitute Violet, loaned by the "loveable" landlord, Mr. Appopolous and shaken frequently by dynamite from the construction of a subway underneath them and Violet's returning customers.
Split into simpler sentences: Soon they are living in a basement apartment, recently vacated by a local prostitute Violet, loaned by the "loveable" landlord, Mr. Appopolous. Their apartment building is shaken frequently by dynamite from the construction of a subway underneath them as well as Violet's returning customers.