That is why paperwork trail, clear agreements put on paper, are important - to avoid creating ground for unnecessary disputes. Anything can be challenged in court, but having proper basic (not so expensive sometimes) legal paperwork is necessary. A form agreement from legal service provider is better than no agreement at all. However, I suspect in this case they had agreements in place, but the dispute arose regardless of that because big company - big money involved.
That is why paperwork trail, clear agreements put on paper, are important - to avoid creating ground for unnecessary disputes. Anything can be challenged in court, but having proper basic (not so expensive sometimes) legal paperwork is necessary. A form agreement from legal service provider is better than no agreement at all. However, I suspect in this case they had agreements in place, but the dispute arose regardless of that because big company - big money involved.