Oh wow...good thing you bought her because the person you bought her from obviously has NO idea about leo morphs.
That is 100% a Patternless Albino. Whether it's a Rainwater, or a Tremper is very hard to decipher due to the only difference being a slight change in eye color. Here is a picture of my Tremper Albino Patternless' eye:
The only REAL way to know if she is Tremper or Rainwater is to test breed to a member of either of the strains because the different strains of albinos do not mix, and produce normals.