The Middlesex County Clerk's Office stands ready to assist with recordation of real property ownership and transfer, and in retrieval of information. This site enables you to interact electronically with the Middlesex South Registry of Deeds.Unlock property secrets with our comprehensive guide to the Middlesex Registry of Deeds. Filing electronically is the latest initiative in my mission to improve and modernize the services of the Middlesex County Clerk's Office. You can search for property records and property ownership information online, in person, or over the phone with a 311 representative. Middlesex Registry of Deeds presents a unique role in chronicling the history of property transactions in Middlesex County. Please review and follow the instructions provided below. Section 1: County Use (Items C1-C4). Massachusetts Access property records, Access real properties. The Secretary of the Commonwealth has provided access to information online in the 21 Registries of Deeds located within the state.