\documentclass[letterpaper,12pt, oneside]{article}
\usepackage[right=2.5cm,left=2.5cm,top=3.8cm,bottom=2.5cm]{geometry}
\usepackage{setspace}

\usepackage[T1]{fontenc}
((* for package in packages *))\usepackage{(((package)))}
((* endfor *))
\usepackage{microtype}
\usepackage{hyphenat}

\parskip 1pt %No more funny paragraph spacing shenanigans!

\setlength{\headheight}{15.2pt}

((* if author *))\author{(((author)))}((* endif *))
\title{(((title)))((* if subtitle *)):\\(((subtitle)))((* endif *))}
((* if date *))\date{(((date)))}((* endif *))

\begin{document}

\maketitle                              %Title Page

\onehalfspace
((* if abstract *))\begin{abstract}\noindent {(((abstract)))}\end{abstract}((* endif *))
((* if spacing *))(((spacing)))((* else *))\doublespace((* endif *))
(((content)))

\end{document}
