Some concepts that would work:
Outline of the State of Pennsylvania
A shield?
A tree? (like family tree?)
A higher hand passing money to a lower (younger) hand? (quite literal, obviously)
I have attached 3 other logos used within the company, and so we'd like at least a little brand continuity with them. You'll notice that #4 and #5 are just rough-draft enhancements of number 1 which now matches with #3 better.
The desired result of this contest is a brand-new logo for Inheritax that feels in the family of 2, 3, and 4. Consider that #2 will also get the yellow changed to gold-fade like #1 -> #4 or #5. Obviously, in the new logo, we want to include a gold-to-yellow "metal reflection" feel, which was inspired by the edge of the coin in #3.
The winner of this contest will be also offered some quick additional work (assuming they are interested) to make some quick modifications to 1 and 2 to spice up the yellow to the gold fade and other enhancements.
If you use fonts that require a license, confirm with the client they're ok with it. For licensing reasons, it is better to provide your client with information on how to acquire the font rather than providing the actual files.