I was at law school for 6 years (LLB in Scotland for 4, then 1 year GDL and 1 year LPC in England).
My mum was not in a position to help me financially. I worked pretty much full time hours for all 6 years (although I did reduce the hours for the LPC because it had a minimum attendance requirement).
If you are in a position to help, I would say that (for an LLB at least) she should try to limit her working hours to around 10-15 per week (e.g. 8 hours on a saturday and perhaps one or two shifts through the week).
I had to work my backside off to keep up at times. Fortunately, an LLB is pretty easy as far as required actual intellectual ability goes, however it can be quite time demanding due to the sheer volume of reading and essay writing required.
I enjoyed working the hours that I did (I can’t sit still for more than 10 mins and enjoyed being around normal people rather than twatfaced law students talking incessantly about training contacts all day), and in some respects it has helped me be the person/lawyer I am today. That said, I would probably have achieved better grades if I had more time to devote to the course (or maybe I would have just wasted it anyway 🙂 ). I walked away with a 2:1, but a 1st should have been within my grasp. Those undergrad grades are one of th key things that sets you apart when applying for vac scheme and training contracts – best to get the highest marks you can!
If you (or your daughter) would like any advice re studying law or getting a TC etc, please feel free to email me (address in profile). I practise in both Scotland and England (currently based in Scotland) and I’m trainee supervisor for the Scottish offices of my firm (a global commerical entity), so happy answer any queries 🙂