I'm using the following:
\documentclass[11pt]{article}
\usepackage[bottom,flushmargin,hang,multiple]{footmisc}
\title{Title}
\author{Joe Blow\footnote{Address}}
\begin{document}
\maketitle
Hello.\footnote{This is a footnote.}
\end{document}
Unfortunately the flushmargin option does not affect the footnote on the author. I would imagine there is a solution similar to the answer here, but I do not know the coding well enough to adapt it or come up with something else.

footnotebackrefpackage as well. Add it right below the\makeatother. For its functionality to be visible, you might want to add\newpage\nullright above\end documentas well. Then you see the author footnote is not getting thefootnotebackreffunctionality. – Erik Apr 15 '14 at 17:42