Since OP doesn't seem to be coming back, I shall do the honours.
This is The Alecto Initiative (Loralynn Kennakris #1) by Owen R. O'Neill.
Life's never easy out in the Methuselah Cluster, the most remote
region humanity ever settled, but when her alcoholic father found her
a 'job' while he went off-planet to look for work for a 'few months',
11-year-old Loralynn Kennakris began to learn just how ugly it could
get. Within the year, her employers sold her to a brutal slaver
captain, who took from her the last thing she owned: her name.
Most girls in Kris's position last a year or two. The strong ones
might last four. Kris survived for eight before she was set free,
thanks to the Nereidian League Navy.
Unfortunately, eight years growing up in Hell prepared Kris for nearly
everything but freedom, and her new life isn't at all what she
imagined. Not only must she find her way in a bewildering society full
of bizarre rules, but the very people who rescued her think she's a
terrorist plant, a beautiful interstellar celebrity is complicating
matters in more ways than one . . . and now someone is trying to kill
But Kris hasn't stayed alive by respecting boundaries or obeying
rules, and her adopted society is about to find out what it's like to
collide with a someone who has no concept of a no-win scenario.