The Middlesex County Clerk's Office stands ready to assist with recordation of real property ownership and transfer, and in retrieval of information. A "Sole Proprietorship" or "General Partnership" seeking to operate in the County of Middlesex must file a Certificate of Trade Name with the County Clerk.You can search for, get copies of, or update property ownership records, such as deeds and mortgages. A deed is often referred to as a title. Home loan terms explained so you have a better understanding of the mortgage process. A list of mortgage terms and their definitions for your reference. "Residential Property" means property described generally as a dwelling house and the lot or parcel of land on which the dwelling house is situated. Enter as much of the name as you are sure of. A wild card is automatically inserted at the end of each search. If any of the leases will expire in the next six months, you must provide a letter from the owner or lessor stating the intention to renew that lease.