As far as the 30-30-30 deal, I still believe it would hold up if it's attached to the chanote itself (where it would follow the chanote regardless of who currently holds it- if you know a little about how deeds work here you'll know what I'm talking about- think about it the way a bank lien is attached to a deed- your [company] name would actually be on it with the lease agreement, which a potential future owner would be bound to accept), and not just a personal agreement between lessor/lessee, which would potentially die with the landlord (my lawyer agrees as well to the point he feels he could make a reasonable argument in court, though he said he wouldn't bet his life on it).
Until it's been tested in court (which won't happen for years), your saying 100% that I'm wrong is just as incorrect as me saying I'm 100% right.
I concede you may be correct here, but you can't say it for a certainty.