Google provides a number of templates that you can use to form the basis of your documents. You can create a new document based on a template, then edit the document as required.
To create a document based on a template:
From the Google Drive screen, click on the New button.
Choose Google Docs, then From a Template
From an existing document, click on the File menu, choose New, then From template
Choose the General tab for standard Google templates, or your domain tab for custom templates for your organisation. Click on the template you wish to use to create a new document based on that template.
Once the new document has been created, you can name the document by double-clicking on the document name and typing a new name.