You Need GeoPlan's integrated GIS capabilites efficiently address your needs. Once you are in map view, you can access a rich set of tools to pan and zoom, query and edit underlying data, change the appearance of map elements, add labels, custom text and graphics, classify data for thematic maps, and produce a subset of records using spatial selection tools. Just select the target parcel's data record, click Plot to map that parcel, click Select Buffer to define the 300 foot dimension, then return from the map view to the application module. Your current recordset automatically includes the parcels selected by the buffer. Two more clicks to specify Mailing Labels from the Reports menu, and your mailing labels will be ready to print.
Form letters are just another click away.
For those municipalities that want to augment GeoPlan's integrated mapping with the features provided by ArcView and its extensions, GeoPlan provides a tool button on the main toolbar to invoke ArcView directly. Moreover, GeoPlan's map library lets you specify and store the locations of ArcView projects that contain layouts for frequently-referenced maps. Simply make a selection from the map library and GeoPlan will launch an ArcView session and load the project for you. While in map view, you can access GeoPlan's spatial selection options to modify your recordset. You can, for example, apply a buffer to the target feature to select all features within a specified distance.