I have an offer for a new job which I am due to start in a month and which I had previously accepted. I have now changed my mind and decided I want to stay where I am for a number of reasons. The new recruiters are eager for me to join and need me quite urgently. Where do i stand with this legally- i have read that the contract is not enforceable until I start work and step on the premises- other posts say that the contract is formed when signed so i am bound by the terms- they will be annoyed with me but are they likely to sue me if I dont join? any views or experiences welcome

Regardless of the legal technicalities, the sooner you advise the employer that you won't be joining them, the better.I don't know how long the notice period in the contract you signed is, but with a month's notice they'll be annoyed but they'll at least have a chance to readvertise the job. They'd have been foolish to promise you to clients as a resource on any contracts, but in case they have they'll at least have time to get a contractor to cover any immediate work.They are very unlikely to sue as it serves no constructive purpose - unless you are a critical executive and on a substantial pay packet, there is no commercial advantage to be had.[I am not a lawyer: this does not constitute legal advice]

Who is the offer with?