how do you become a grant writing consultant?

Answer 1

I'd recommend that you have some experience, perhaps have written a couple of grants that were funded. If you don't have this, then volunteer to write a couple first. If you do, then check out how others locally charge for their services. Charging by the hour is popular, but I prefer to charge by the project. I listen to the client, figure out about how long it will take and how much they can spend, and then tell them. They usually say yes because they like fixed costs. After that, spread the word. Tell everyone you know that you're looking for clients. Go to places where potential clients go, like business luncheons. Have some cards printed up. Write potential clients and offer your services. If you feel confident, teach some half-day classes on how to write grants: people will go to see what's involved, figure that they don't have the time, and offer to hire you.
You'll also want to know how to research funders, so that you can find places to submit grants.
See www.fdncenter.org to learn more about grant research and writing, if you don't know enough already.
Good luck!

Answer 2

Learn to write grants. And that, according to my redhead, is a pain.