To add another suggestion, many universities have hardship funds; i.e. a discretionary pot of money set aside for any students that may need it. You could perhaps speak to the unis you're interested in, and ask if they can help here.
To echo the above, if you'd be getting a high maintenance loan (around 7k), then you'd be fine by yourself. I'd suggest using the calculator on SFE's website to calculate your potential loan.
It's a tricky situation, but there's definitely help out there! Don't let this put you off going to university. As an aside, I did law and absolutely loved it - best 3 years of my life.