Top authors for ecommerce content

[BobGW]

Hello,

What are some tips that you recommend for someone looking to hire an expert to write or consult in a piece of content. It's as general a keyword as our niche has and it's the only keyword that's actually inside the niche that has any decent level of backlinks.

We're considering searching out an expert in our field that knows more about the subject than our people do even though our people are knowledgable. Trying to come from authority.

Your recommendations in the process of coming up with a great piece of content from a good authority?