unrestricted commercial operating under part 91

Hello all,


I hold an unrestricted commercial pilot's license issued in 1973. I am
not current but that's something I can take care of in a week.

My question is... I would like to fly for hire under part 91.
Specifically, I would to fly lawyers to their depos and get back home at
the end of the day. It's my understanding that I cannot do this and have
to operate under part 135? My, how times and restrictions have changed!!


My Google research indicates that all this added crap went into effect in
1993.


Might someone out there, like myself, know if I'm "grandfathered"under
part 91?

Thanks