Assistance with provisional patent

One of my clients is seeking to file a provisional patent for a new chemical (drug) product. They have obtained significant preliminary data and have completed figures and basic write-up for the work. They will provide the initial draft of the provisional. They are looking for an pharmaceutical patent expert to help with the requirements for the patent application. A NDA and representation agreement will need to be signed prior to initiation of this work. My client plans to proceed with the plan for a provisional at this time, followed by a full regular application within the next 6 months. The output of this specific project should be a strong and sufficient provisional patent application, not simply advice on the development of the provisional. Thanks.