If your contract is illegal and you have access to your documentation, YES!
And here are the reasons why you should make a claim!
Let´s say for example that you own 2 weeks and have spent 25.000,00€
If you decide to do nothing, this means your outlay now is zero, the current resale value could give you 3.000,00€ for the 2 weeks, but this means that basically you are walking away from any reasonable amount of money back.
If you decide to make a claim, yes you will have an initial outlay now, but you are guaranteed to get back your investment and receive 25.000,00€.
Which option makes more sense?
Our most recent win awarded the client a massive 230.000,00€ back!!!