Jones v. Stahr, et al., 746 N.W.2d 394 (Neb. Ct. App. 2008)

(right of first refusal to buy real estate, after seller has determined both to sell the entire remaining property and to accept terms and conditions specified by potential buyer, ripens into an option; because options are assignable, provision in option holder’s acceptance reserving right to assign does not constitute material deviation).