I was in a business relations with a company that I was a acting partner but not on paper.We have since split I was paid with a small salary then paid

bonuses on jobs till the end when they gave me false books and accounting. I have copyies of the books and the other partner agreed they where incorrect it is a substantial amount 80,000.00 plus.Since it was not on paper should I proceed as an employee that they did not pay correctly overtime wage etc.. Or proceed as a partner sending all paperwork to the Irs so I can get a correct audit on the books. Thanks