\documentclass{article}
\usepackage[letterpaper,top=0.5in,bottom=0.5in,left=1.2in,right=1.2in,includeheadfoot]{geometry}
\usepackage{amssymb,amsmath}
\usepackage{parskip}
\usepackage{fancyhdr}
\usepackage{tabu}
\usepackage{enumerate}
\usepackage{graphicx}
\usepackage{xcolor}

\newcommand{\solution}[1]{\item {#1} \newpage}
\newcommand{\multichoose}[2]{\left(\!\genfrac{(}{)}{0pt}{}{#1}{#2}\!\right)}
\renewcommand{\baselinestretch}{1.3}
% NEEDS CHANGING
\newcommand{\HomeworkNo}{8T}
\pagestyle{fancy}
\fancyhead{}
\fancyfoot[L]{\MyName{}}
\fancyfoot[R]{Recitation time: \MyRecitation{} - Homework \HomeworkNo{}}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\frac}[2]{\dfrac{#1}{#2}}
\setlength{\headheight}{0pt}

\fancypagestyle{firstpage}{
  \fancyhead{}
  \fancyfoot{}
}

%% Please enter your name & recitation directly below

\newcommand{\MyName}{GENERIC NAME THAT NEEDS CHANGING}
\newcommand{\MyRecitation}{X}
\newcommand{\CollaboratorNames}{GENERIC COLLABORATOR NAMES THAT NEEDS CHANGING}

%% Do not modify the name below here
\newcommand{\MyCollaboratorCheck}[1]
{\ifnum\pdfstrcmp{#1}{GENERIC COLLABORATOR NAMES THAT NEEDS CHANGING}=0
    \textcolor{red}{#1}

\else
    #1
\fi}
\newcommand{\MyNameCheck}[1]
{\ifnum\pdfstrcmp{#1}{GENERIC NAME THAT NEEDS CHANGING}=0
   \LARGE\textcolor{red}{#1}
   
\else
   #1
\fi}
\newcommand{\MyRecitationCheck}[1]{\ifnum\pdfstrcmp{#1}{X}=0
   \huge\textcolor{red}{#1}
\else
   #1
\fi}

\newcommand{\PrintFirstHeader}{
  CIS 1600 24F \vspace{5pt} \hfill {\Large\MyNameCheck{\MyName}}
  \\
  {\LARGE{\textbf{Homework \HomeworkNo{}}}} \vspace{5pt} \hfill Recitation Number: {\large\MyRecitationCheck{\MyRecitation}}\\
Collaborators: \MyCollaboratorCheck{\CollaboratorNames}\\
  \rule{\textwidth}{0.4pt}
}
\begin{document}
\thispagestyle{firstpage}
\PrintFirstHeader{}
%
%
%
%% ONLY MODIFY BELOW HERE (Besides entering your name)
%
%
%
\begin{enumerate}[\bf Q1.]
  \setlength\itemsep{1em}

    % Question 1
    \solution {
        \begin{enumerate} 
            \item 
            \item
            \item
        \end{enumerate}
    }
    
    % Question 2
    \solution {

    }

    % Question 3
    \solution {

    }


\end{enumerate}
%
%
%
%% ONLY MODIFY ABOVE HERE
\end{document}\\\\\\