Contract Solicitor / Lawyer

We need a solicitor or lawyer versed in contract law (UK) to look over and amend (if required) our hire agreement. We are a soft play hire company, we hire out soft play equipment for birthday parties, weddings, etc, for under 5 year olds to play on. We have a hire form the customer signs which has a short version of the rules of hire, we also need a full & legal version to put on our website that hirers must have read and agree to.