Reference Letter.tex

\documentclass[11pt]{letter}
\usepackage[margin = 1in]{geometry}
\usepackage{graphicx}
\usepackage[export]{adjustbox}

\longindentation=0in % closing and signature on the left of page

% dark blue URLs and emails
\usepackage{hyperref,color}
\definecolor{darkblue}{rgb}{0.0,0.0,0.3}
\hypersetup{colorlinks,breaklinks,
	linkcolor=darkblue,urlcolor=darkblue,
	anchorcolor=darkblue,citecolor=darkblue}

% For \email{ADDRESS}, links ADDRESS to the url mailto:ADDRESS in teletype fixed-width font
\providecommand*\email[1]{\href{mailto:#1}{\texttt{#1}}}

% logo in left header for letterhead
\usepackage{fancyhdr}
\fancypagestyle{plain}{
	\fancyhf{}
	\fancyhead[L]{\includegraphics[width=.4\textwidth,left]{unc_logo.png}}
}
\pagestyle{plain}
% no header line
\renewcommand{\headrulewidth}{0pt}

\makeatletter
% assign plain page style to letter page types
\let\ps@empty\ps@plain
\let\ps@firstpage\ps@plain
% reduce space above signature
\renewcommand{\closing}[1]{\par\nobreak\vspace{\parskip}%
	\stopbreaks
	\noindent
	\ifx\@empty\fromaddress\else
	\hspace*{\longindentation}\fi
	\parbox{\indentedwidth}{\raggedright
		\ignorespaces #1\\[\medskipamount]%
		\ifx\@empty\fromsig
		\fromname
		\else \fromsig \fi\strut}%
	\par}
\makeatother

\usepackage{lipsum}

% letter info
\signature{\includegraphics[height=40pt]{signature.png} \\FIRSTNAME LASTNAME \\ TITLE}
\address{FIRSTNAME LASTNAME \\ DEPARTMENT \\ ADDRESS ONE \\ ADDRESS TWO \\ \email{EMAIL@DOMAIN.TLD}}

% letter
\begin{document}
	
	\date{\today}
	
	\begin{letter}{ORGANIZATION TITLE \\ ADDRESS ONE \\ ADDRESS TWO}
		
		\opening{To Whom It May Concern:}
		
		\lipsum[1-2]
		
		\closing{Sincerely,}
		
	\end{letter}

\end{document}