Question juridique clé
Whether the appellant had standing to challenge the land purchase approval after becoming lessee only later and after the decision had not been served on the former lessee.
Solution extraite
The appellant had standing to bring the federal administrative appeal against the cantonal judgment on the question of legitimacy, but he lacked standing to attack the approval on the merits because he was not the lessee at the relevant time and did not inherit the former lessee's rights.
Motifs extraits
Defective service does not make the approval void; under the logic of proper notice, the appeal period for the uninformed person starts only upon service. However, the appellant was not a party to the original approval procedure, was not the former lessee's legal successor, and cannot 'inherit' the benefit of defective service.