FD, how are you defining "consultant" in this context? Technically, anyone you hire to do a job for you is a consultant if they are not your employee. "Consultant" is synonymous with "contractor" in that regard.
It sounds to me like what you're talking about is a business counselor, someone who advises you on how to be more successful in your business. I'll assume that's what you mean as I respond to your questions. If you actually meant something else, please clarify.
From: FD Spark
Have you used business consultant?
In SL? No.
I suppose you could say I am one myself, though, since when clients ask me to build this or that for them, they sometimes ask my opinion on their plans. I usually try to stay out of that side of it, though, unless directly asked. It's not really my place to make unsolicited judgments. If someone thinks they can make something work, who am I to tell them they can't?
From: FD Spark
How do you now a SL business consultant is legit?
Ask for a proven track record of success. What previous businesses has the person advised, and how exactly did he help them to grow? Ask him to be as specific as possible on this. Also, talk to the references yourself, and ask if the service was worthwhile to them.
From: FD Spark
Would you use a business consultant that spammed you?
Absolutely not. While I'm all in favor of aggressive marketing, spam crosses the line. I have zero tolerance for it, as do a great many other people. Anyone who doesn't understand that certainly doesn't have the wisdom to advise me.
From: FD Spark
What other signs of things would you look for in legit business consultant ?
In RL, I'd say size the person up. Does he or she strike you as a leader? Is he or she someone you would strive to emulate? Does he or she clearly demonstrate traits that are essential to long term success, such as honesty, integrity, ethics, enthusiasm, vision, helpfulness, savvy, intelligence, a genuine desire to see others succeeed, etc.? In SL, though, those things can be very hard to determine. There's just not enough opportunity to judge character. Most of the nonverbal cues the we normally use to assess a person's worth are not there.
I guess the first thing I'd try to pick up on is how does this person talk to me. Am I learning anything about communication just from being in his or her presence? Is the way he/she talks to me the way I'd like to be talking to my customers? Remember, if you're his/her customer, and he/she can't do a good job managing you, there's absolutely no way he/she will be able to help you manage your own customers.
Also, who does the person talk more about, him/herself or you? If you sit down for an introductory meeting, and the first words out of the person's mouth are his/her own life story, say goodbye right then and there. You want someone who's genuinely interested in learning about you, your business, and your goals. If the signs aren't there that YOU are priority one to this person, leave.
How does he/she plan to help you grow? Is he/she planning to dive in and really learning about your strengths, weaknesses, goals, and dreams, to then draw up a plan to help you achieve what's important to you? Or is he/she just trying to sell you a pre-packaged one-size-fits-all collection of self-help mumbo jumbo? If it's the latter, you can get the same thing for $9.95 at your local bookstore.
Aside from that, I'd say think about what aspects of business are you not good at yourself. You know what they are. Take a good look in the mirror, be totally honest with yourself, and draw up a list. Are you not as good at the art of selling as you'd like to be? Are you a procrastinator? Do you not have a solid mastery of the science of goal setting? Are you not as effective as a leader as you'd like to be? Do you lack any skill in the numbers side of business, such as accounting, assessing profit & loss, etc.? Is this person qualified to advise you in those areas? And is he/she also able to point out ways in which you can also improve in areas you thought you were already pretty good at?
These are hard questions. But they're crucial ones. Anyone who's worth his/her salt as a business counselor should be seeking to advise you on all of them. If they're not, then they're not worth your time or your money.
And of course, there's the most obvious question. Does this person really understand not only business, but business in SL? Has he or she run any successful businesses of his/her own in-world? If so, what kind? Would that experience put him/her in a good position to judge how your particular business could do better than it already is?