I recently discovered a $400.00 check written to my Father's mistress of 25+ years. I wasn't certain he was giving her money, however, now I know. I feel their relationship is highly inappropriate and am afraid he has been providing her with financial support throughout the years. My biggest fear regarding all of this is upon his death, she request a monetary payoff she claims he promised her.
How do I address this issue without ruffling his feathers?
All suggestions are appreciated!