It took me about 5 tries, but this is how I beat her (just now)
1 lvl 24
2 Jedi Sentenal
3 Kira as companion in aggressive mode
4 used 1 regulation med pack when she knocked about 1000 HP's off me
5 used Standard Issue Might stim (did not beat her when I tried using a fotification stim)
6 used saber ward and rebuke buffs at the beginning of the fight
7 made sure I had 30 focus stacks so I could use Zen Buff at the beginning of the fight.
8 when Crippling Throw was available I took a couple steps back and used it.
9 used every attack in the book to bring her down!
She is over 8000 HP so she's not an easy fight for a lvl 24 with same level companion because your combined HP's are still more than 1000 behind her. The trick is to try to side step when she tries to hit you with force lightning. She opened with that attack and wasted all my buffs and took me down by nearly 1000 HP's. I almost died that time too, but got her right at the end. Use Cautorize, Master Strike, and Blade Storm as often as you can (standard rule for any big fight) mix in Slash as often as you can because it deals big damage and has a short cool down time.
Hope this helps.