In legalese the typographic conventions of readability may be undesireable as the purpose is to have the victim sign without reading. Therefore some tips to cram a lot of fine print:
Adjust fontsize:
<<class: clean!a4paper,10pt>>
Adjust margins
#
<<papersize: fancy!custom!dummy!210mm!297mm!22mm!7mm!18mm!10mm!2mm!3mm!5mm!4mm>>
<<papersize: fancy!custom!dummy!210mm!297mm!35mm!20mm!25mm!15mm!12pt!11mm!0mm!11mm>> DEFAULT
Adjust line and paragraph spacing (see also http://www.terminally-incoherent.com/blog/2007/09/19/latex-squeezing-the-vertical-white-space/)
<<linespace: !0pt!\medskipamount>>
\setlength{\parindent}{0pt}
\setlength{\parskip}{0pt}
\setlength{\parsep}{0pt}
\setlength{\headsep}{0pt}
\setlength{\topskip}{0pt}
\setlength{\topmargin}{0pt}
\setlength{\topsep}{0pt}
\setlength{\partopsep}{0pt}
\usepackage[compact]{titlesec}
\titlespacing{\section}{0pt}{*0}{*0}
\titlespacing{\subsection}{0pt}{*0}{*0}
\titlespacing{\subsubsection}{0pt}{*0}{*0}
Adjust list spacing (see also enumitem, http://www.wand.net.nz/~stj2/blog/?p=626)
\usepackage{mdwlist} and \begin{itemize*} or \begin{enumerate*}
Some other method is supposed to exist.
Adjust list spacing
\usepackage{enumitem}
\setitemize{nolistsep,leftmargin=*}
Rewrite text to be more compact
Combine paragraphs
Inline lists into paragraphs
Stretch page to fit one more line
<<tex: \enlargethispage*{\baselineskip}>>
Control how rigorously latex splits
\sloppy
Even - Odd pages
\setlength{\evensidemargin}{15pt}
\setlength{\oddsidemargin}{45pt}