You can redefine \@makefnmark and \@makefntext to achieve the behavior you describe. We look at the original definition with \makeatletter\show\@makefntext\makeatother and produce
> \@makefntext=\long macro:
#1->\parindent 1em\noindent \hb@xt@ 1.8em{\hss \@makefnmark }#1.
l.6 \makeatletter\show\@makefntext
and with \makeatletter\show\@makefnmark\makeatother we produce
> \@makefnmark=macro:
->\hbox {\@textsuperscript {\normalfont \@thefnmark }}.
l.7 \makeatletter\show\@makefnmark
In the latter case, we get rid of the \@textsuperscript to address question one. I am not sure, I understand 'number in a list' correctly, but I added a period after the number in \@makefntext to address question two. If you like other changes, you can add them in the same way.
This affects all footnotes in the whole document and should, therefore, be consistent for all footnotes. You can look at the footmisc or the scrextend package to get more options for footnote issues. You will also find some more in question 1 and question 2.
\documentclass{article}
\usepackage[paperheight=2in]{geometry}
\makeatletter%
\long\def\@makefnmark{%
\hbox {{\normalfont \@thefnmark }}}%
\makeatother
\makeatletter%
\long\def\@makefntext#1{%
\parindent 1em\noindent \hb@xt@ 1.8em{\hss \@makefnmark.}#1}%
\makeatother
\begin{document}
\makeatletter\show\@makefntext\makeatother
Word \footnote{This is a word.} Word \footnote{This is also a word.}
\end{document}
