OldSurveyor
Member
The signers of the agreement are all deceased. While there was no time limit for them to build the road, their demise has, I think, effectively set a limit. The heirs and assigns are all that remain.
I think that this is a legal concept that you are just not getting, despite our sincere attempts. A local attorney can help, and may be absolutely needed at some point.
I have tried to give the best advice to the Op very reasonably but despite 45 years as a licensed surveyor, having created and dealt with virtually every type of easement, I have to leave the thread to others.
Oldsurveyor out.