Welcome Julie, and although I can’t speak for the main man here, Gregg Sutter, I think he’d say what you’re asking about is perfectly appropriate.
As to the substance of your question, the answer—to the extent it can be answered directly—can be found in interviews Elmore’s done over the years. For example, here’s Elmore talking about where Karen Sisco came from:
“EL: ...I’ll tell you one story. I saw this picture once in the newspaper, it was of an attractive female federal marshal leaning against a jeep with a big nine millimeter tucked in her pants and a shotgun cradled in her arms. That picture intrigued me, there was something very tough about that woman, but she was a very pretty, feminine woman at the same time. I kept that picture around for ten years before I wrote a character based on that image into a book – she became Karen Sisco in Out of Sight (played by Jennifer Lopez in the movie version).”
To read that whole interview, go to:
http://www.thegate.ca/interviews/e-leonard.php
Other interviews are linked up here and there in various threads on this site. A good one is:
http://www.commonwealthclub.org/archive/04/04-06leonard-intro.html
And here’s what Google turned up:
http://www.google.com/search?client=safari&rls;=en-us&q;=elmore+leonard+interview&ie;=UTF-8&oe;=UTF-8
Gregg posted podcasts of Elmore, including some where he interviewed Elmore, and others:
http://www.elmoreleonard.com/index.php?/search/results/4911aa28b1e23fe0ae70ee9bc0be0d54/
Of the non-Gregg interviews, “A Party on the Page” is probably the best (because the interviewer is informed and articulate and respectful), but any time Elmore’s talking it’s worth listening, even when the interviewer’s a bonehead.