what did you agree to and is it in writing? another question what year because there is a final return due the 15the day of the third month after the sale. so if bought/sold in 2019 the return is late and there is a penalty of about $3000 increasing by about $400 per month. if sold in 2020 before July the 2020 return is probably late. the answer is what does the buying partner want to pay and get in partnership assets for buying out the other partner and what does the selling partner want to get. there is also a messy part to buying and selling a partnership interest. as others have said see a pro.
