Hello my name is ***** ***** I am the fraud expert assisting you today. If you legally purchased a home (even though it is a short sale) then you have done nothing wrong or fraudulent. If you had a mortgage that you obtained legally and made all the payments until the sale of the home back to your aunt in 2015 then again you have not done anything wrong or fraudulent.
Since you were the owner of the home during the 2011 - 2015 period, you are legally entitled to all of the equity earned during the period of ownership.
Can you please clarify as to why you feel that you have to ask your aunt (the buyer in 2015) for the equity that you earned as the owner of the house from 2011 - 2015?