So... without further ado:
An acquaintance has legally come into a very large amount of money. They wish to share a significant percentage of their good fortune with you. The catch is that the source of that money is something that you personally consider morally wrong.
I cannot tell you what it is because I cannot tell you your opinions. Consider what you would personally strongly morally disagree with: being paid to run advertising campaigns against abortion if you are pro-choice (or vice-versa if you are pro-life), trading arms (legally) is you are anti-war, a golden parachute from a coal power plant if you favour environmental protections, or defending environmental protestors who stop fracking if you favour industry freedoms, being paid to produce propaganda pieces for a regime you absolutely oppose, receiving money for giving vitriolic speeches against x-gender/ethnic minority/person with x-disability/religion... Whatever your major bugbear(s) are, that's the source.
The questions are:
1. Would you accept the money in any circumstances. Why/Why not.
2. If you would, is there any circumstance under which you would reject the money?