Ok. let me explain the following:

He ended his partnership 2017

Year 2018 he filed 1065 but the partner that was finished 2017 he used the info but input 0% share and 100% for himself

year 2019 he deleted the partner but instead he used his own info to create two partners one with social security and the second "Foreigner".

Now I know that I Have to amend 1065 for 2017 to make sure schedule k is final for both partners and I know I have to amend his personal taxes to create schedule c for 2018 and 2019 but what do I do with the 1065 for 2018 and 2019. I just send a letter to IRS explaining so they can delete those forms partnership taxes .?