lease agreement

I am buying a leaseback apartment through another agent with whom I'm having difficulty getting answers to all my questions. This may be because they are French and there is a bit of a language problem. So I hope you don't mind me asking a general one here. I have a translation of the lease agreement which all seems very complex. There are different clauses in it which for example state that I can do such and such if the managment company does such and such. Sorry for being so vague. But I was just wondering how legally binding this is.

Jill