To prevail on a claim of promissory estoppel under Missouri law, a party must establish a promise made by the defendant; foreseeable, detrimental reliance on the promise; and injustice unless the promise is enforced. (dailyreportingsuite.com)
Under this controlling precedent, Defendant's argument — that Plaintiff's common law promissory estoppel claim is preempted because he based it on the same set of facts as those underlying the MHRA claim — is unavailing. (thekuhnlawfirm.com)
Even in promissory estoppel, however, the effect of the estoppel will be permanent if it is unfair for it to be suspensory only. (slaw.ca)