Hello, I am looking for a good translation of "clé en main" as in the phrase "le groupe est composé d'une multitude de sociétés afin de proposer à ses clients investisseurs un produit "clé en main"". Apparently, it refers to a property that is ready for immediate use and in the case that I am translating, one for which all the taxation papers have been prepared in advance by the developer. My problem is that I need to find a short phrase/translation that says all the above as it is for a powerpoint presentation and there is no space to elaborate. Does anyone have any good ideas? Thanks.