\documentclass[11pt]{article}
\usepackage{url}
\urlstyle{same}
\usepackage{amsmath}
\usepackage[top=1.5 in, left=1.5 in, bottom=1.5 in, right=1.5 in]{geometry}
\usepackage{graphicx}
\setlength{\marginparwidth}{1.2in}
\newcommand{\margin}[1]{\marginpar{\raggedright \tiny #1}}
\setlength{\parindent}{0in}
\setlength{\parskip}{+.2in}