While I have never "dated" an SP, (for longer than 1 night at least...), the prospect of doing so has been presented to me on several occasions...
My advice to you is don't do it. Unless she is committed to quitting the biz and you are committed to quitting the hobby. Here's why:
Recreational sex (ie "sport fucking") is different than emotional sex.
Recreational sex is what this "Hobby" is all about.
Emotional sex is what a relationship is all about. The two cannot coexist... because one will be the demise of the other. I know that is not going to be a popular opinion on this forum, but it is almost always the case.
Us guys "hobby" because there is something missing in our lives: gratifying sex! Those of us without SO's, are seeking female companionship with the guarantee of sex and are therefore in a different situation than those of you with SO's. Those of you with SO's and who are still in love with those SO's, aren't getting what they want, (be it a particular fetish, or maybe looking to scratch an itch of some kind...), so they turn to SP's. That is what I call recreational sex. Once the SO finds out about it, the relationship almost always inevitably ends... because the spouse is unable to separate the two types of sex. (Edit: This is equally true for guys as well as girls BTW).
SP's hobby because there is something missing in THEIR lives. The financial means to live the sort of lifestyle they want. That is not to say that some (many) also enjoy their jobs, because many of them do. Sex FEELS good! (If done right of course... as with all things there are exceptions to every rule...) I know many SP's say they do this for a living because they just enjoy sex so much, and while I'm not disputing that they DO in fact enjoy it, (I know first hand that many of them do...) they don't do it for THAT reason exclusively, because then they'd be doing it for free. LoL (Kudo's to them for having a fun job, they enjoy, that also pays them good money!)
Occasionally, there comes a time when recreational sex turns into emotional sex, and that is when the prospect of dating an SP occurs. However, unless the SP is willing to quit the business and rely on a different means of living their lives to the standard to which they are accustomed to, and the hobbyist is going to stop seeing other SP's, then this relationship is doomed. Its the nature of the beast. And cannot be avoided. (In spite of one's best intentions...)
Time and time again have I read and heard stories of SP's and clients trying to make a go of it, but unless they are both completely committed to the relationship and cut themselves off completely from other recreational sex partners, it won't last... It may survive for awhile because everyone is having fun, but eventually the inevitable will happen.
The only possible solution is to have recreational AND emotional sex with the same partner... exclusively.
Just sayin....