Does such a thing as rent a scientist exist in Canada?

I think that hiring experts to field difficult questions would sort of defeat the purpose of Fluther.

Possibly, but referring a questioner to an expert is what we’re all about. I like the question; hope there’s a positive response.

you mean to simply answer questions or explain accepted theories and results?
or to do research on your behalf, into something you’re interested in?

does it have to be in Canada!?

Sounds like you want a consultant, but payPal suggests you might not have a consultant budget.

Yes.
http://www.the-scientist.com/?articles.view/articleNo/10069/title/Jobless-Chemists--Brainchlid--A--Rent-A-Scientist--Agency/

I am a retired research scientist who lives in Canada. If you have a specific research question in mind, perhaps I can help you or if not, I may be able to redirect you to someone who can. I did consulting throughout my active career but never considered myself for rent.