You should check these out in your area because everything I see is local to me.

Three fool proof ways to get started as a freelance grant writer
  1. First, get really good at grant writing. As a freelance grant writer you'll have to constantly sell yourself and your services. ...
  2. Create a killer website. The internet is a great marketing tool–my favorite, actually–and it's here to stay. ...
  3. Tell everyone what you do.
    4. https://www.indeed.com/q-Freelance-Grant-Writer-jobs.html