Legal practice management software

We need software for managing files from start to finish in a legal practice. We need to be able to add and manage all parties to a real estate transaction file, enter details of the real estate transaction, automatically add entered expected receipts to a separate pivot table, have all emails (outlook) tagged and automatically assigned to the individual file, enable notes to be and be attached to the specific file, a calendar and deadline notification system that is tied to a calendar that can be synced with all members of the firm's computers, tablets, smartphones, and a mail merge document generation system that will populate based on the content of the individual file and participants. We need it created in MS Access so we can manage, and add feature in-house if needed. More details and diagrams of what we need are available on request.