How do I force a top margin?

I’m required to have a 2-inch top margin for my References page. However, using chapter* (which produces a 2-inch top margin) results in the Table of Contents having a Chapter called * before References. Trying to use setlength to force the top margin makes the content at the bottom of the page cut off. If it matters, I cited everything manually throughout my paper, and had to sort of forcibly produce my bibliography as a result.

Here are the relevant chunks of code:

documentclass[11pt,Chicago]{uuthesis2e}

usepackage[letterpaper]{geometry}
usepackage{afterpage}
usepackage{amsmath}
usepackage{amssymb}
usepackage{bm}
usepackage{bibnames}
usepackage{citesort}
usepackage{graphicx}
usepackage{graphpap}
usepackage{longtable}
usepackage{multirow}
usepackage{tikz}
usepackage{tikz-qtree}
usepackage{semantic}
usepackage{gb4e}
usetikzlibrary {decorations.markings}
usepackage{varioref} 
usepackage{tipa} % for special characters (BMS)
usepackage{csquotes}
usepackage{natbib}
bibliographystyle{unified}
usepackage {uuthesis-2016-h} % MANDATORY PACKAGE
usepackage {mythesis}

begin{document}

...

maintext
pagestyle{headings}

include {chap1}
include {chap2}
include {chap3}
include {chap4}
include {chap5}


%Below is my code for the forcibly-inserted References section.
%I need to force a 2 inch top-margin just for the first page of this.

nocite{*}  % Just forcibly put in everything from bibliography.bib
section*{REFERENCES}
phantomsection
addcontentsline{toc}{chapter}{REFERENCES}
% the style file doesn't seem to like using usepackage{natbib}, which is needed for the unified stylesheet. Create dummy section named "References"
renewcommand{bibsection}{}  % because we've done that, suppress the normal heading the bibliography would generate
pagestyle{empty}
bigskip
begin{singlespace}
bibliography{bibliography} % insert bibliography
end{singlespace}

...

end{document}