The new rules came into place on 6th April 2012. So if a person made an application for leave to enter the UK as a domestic worker in a private household on or before 5th April 2012 then they can change employers and apply for an extension to remain in the UK to work.
If they applied on or after 6th April 2012, then the domestic worker cannot change employer or obtain an extension of leave. They must leave when their overseas employer leaves the UK.
There would seem little point in employing a solicitor since any such application would lead to a refusal under the rules.
http://www.ukba.homeoffice.gov.uk/visas ... icworkers/
Since the domestic worker cannot legally work in the UK for anyone except the overseas employer who sponsored their application, then they would be working illegally if they worked for you. You can be prosecuted for employing illegal workers -
https://www.gov.uk/penalties-for-employ ... al-workers
