Corporate identity for a law firm

It is necessary to develop a corporate identity for a law firm. I think you know what to do for the company within the corporate identity, but still clarify. This is the development of a logo, a corporate font, a corporate color, a corporate form, an envelope, a corporate business card, and also to develop a badge.
After this work will require the design of the advertising leaflet and the creation of a brochure. Maybe you need something else, but that's after.
At the moment, I am interested in the price and timing of the development of what is listed by item.