I run a popular community for people within a specific profession and am redesigning my website to include a Trustpilot like directory where people can share their experiences of the companies and people who service this profession. I'm aware of media law, defamation, privacy laws etc, and have written guidelines around the obvious stuff. All experiences will be pre-moderated too and only registered users can submit. But I was wondering whether I need to get more legal advice or something drawn up. I've looked at TripAdvisor and Trustpilot's guidelines etc to get a sense of what to include in the guidelines, but I was wondering whether I need to go a step further and get professional advice to avoid my arse being sued. I will be super careful when publishing experiences, but it's inevitable negative experiences will be shared.
If you would recommend I get advice, any recommendations and sense of costs?