When I was doing my A Levels, I remember the person in charge of our UCAS application told that when it comes to Law degree, universities prefer candidates to not have Law as part of their A Level subject.

If you're thinking of pursuing law, I would recommend you to take English Literature. They love candidates who did E-Lit during A Levels simply as it is a very difficult subject to master. Thus, if you're thinking of going into Oxbridge, LSE etc you'll have a greater chance if you do E-Lit. Bear in mind, E-Lit is indeed a very challenging subject and you'll need a great tutor.

As someone have mentioned above, there is no shortage of applicants with great results. Honestly, it is unheard for someone to be admitted into top universities with only 2 A- Levels. You will need a minimum of 3 A- Levels. Even then, it is extremely competitive.

It is not impossible to get into those universities provided you have a good personal statement and great results with 3 A- Levels.

I have plenty of friends who went to Imperial, LSE, Warwick, Oxbridge etc. I went to KYUEM so I speak based on my personal experience.

Not too sure of what way are you referring to but you can if you opt for their foundation programme. It gives you a direct entry provided that you meet the grades.

If you're really keen on Kings, I'd suggest you to opt for their foundation. Only a year programme compared to A-Levels. You will have to do the programme in the UK though.