A third party can be named in a lawsuit for just about any reason, as including a party requires no more than adding a name to paper.
And if the representative for an injured party sees an opportunity to attach judgement to another potential source of payment for a lawsuit, many attorneys will do so if there is some fact or association in play.
Then the question becomes the true liability of the third party, which the court ultimately decides.
Ask Standard Legal cannot speak to the result of such litigation because of the nearly unlimited number of variables, both from within the contract itself and from outside.
Further, Ask Standard Legal cannot analyze a personal situation and provide an opinion on it; that is the definition of legal advice, which can only be provided in a client-attorney relationship.