Yes, I can tune your piano so that the A above Middle C is 432, rather than the standard 440. But you're probably not going to like it.
I firmly believe that a piano owner should have complete say over how their instrument is tuned - even if it is somewhat unusual. Some people feel that tuning instruments very slightly - but very specifically lower, causes the music played to have more of a positive or even "healing" vibration.
But your piano was designed to sound it's b