Knowing a good number of Filipino nurses in the N Wales area, their should be a Filipino Welfare Officer (or similar) in contact with the hospital she works for that can help her. If not, I know that a number of them do have their parents here.
They do have to have their own house (even if it's a mortage), be financially secure, which they usually are, but most importantly, if they want them to live with them, that is what they MUST make clear with the immigration from the start. Don't try and fiddle it, no tourist visa.
You can call the immigration deptartment and ask them yourself for the most up-to-date info, but I'd say as long as the nurse is likely to be here for a few years (a lifetime knowing the NHS & goverment policy), the odds are better than 50/50.
