-You are making way too many assumptions.
" The fact that my relative bought it, stole it, built it - irrelevant if I don’t know the source."
-Now you are saying:
" S/he worked hard knowing full well someone would inherit it, and would want me to benefit, hence I WAS THE BENEFICIARY on his will, inheriting"
So, which is is? You really don't have an argument to ignore. Other then maybe some taxes, the inheritance is free to you or did you work for it?
" The fact that my relative bought it, stole it, built it - irrelevant if I don’t know the source."
-Now you are saying:
" S/he worked hard knowing full well someone would inherit it, and would want me to benefit, hence I WAS THE BENEFICIARY on his will, inheriting"
So, which is is? You really don't have an argument to ignore. Other then maybe some taxes, the inheritance is free to you or did you work for it?