[OS X TeX] Footnote font size

[Shahriar Anwar]

Dear TeX user group members,

I am writing a document in LaTeX memoir class. The editors (who only know MS Word) are requiring that my footnote font size must be the same as that of the main body (which is 11 pt). Can you please help me fix this ``unreasonable" demand? 

Also, how do I keep the same linespacing (doublespace) in footnotes as in the main document?

Thanks for your help.

Shahriar Anwar