IMO, if she wants to have a tattoo removed I would suggested checking out a reputable dermatologist in your area and go with the laser route.
One thing I would suggest to your girl is to make sure that you don't do any tanning while having the lasering done. If she already has a tan make sure it's gone before your first session. If your skin is not as pale as it can be natural the laser will pull extra pigmentation out and the area will end up blochy
Also keep in mind, depending on the tattoo she will require many session, prob close to 10-15. another thing is if the tattoo is coloured, the laser will no pull all the color out. It's best for black ones.