Does purchasing a share in an internet cafe at a price significantly exceeding its original cost constitute "khulw rijl" (key money/goodwill payment) and thus render it impermissible?

It is not permissible to open an internet café unless it is possible to control and prevent corrupt websites and forbidden chats. As for purchasing a share from one of the internet owners, it is permissible by agreement between the two parties. The additional amount paid to the owner is considered a lawful profit, and not a premium for vacancy (khalaw).