@RyanMilligan1 since you took to posting on my LinkedIn Group about this - perhaps you could share some more about your holdings in this venture (is it via shares you bought directly from this person?) or via Cryptostocks?
Also you have to remember legal fees to litigate against someone in another country (are you in the UK?) against a private party / private party's relationships' company could be an extremely expensive endeavor. A "legal" agreement for him to provide you with 'ownership' in a company or endeavor via 'Cryptostocks' is far from a legally binding agreement. At least in a US court of law.