A Sales Agreement is a legally binding contract between a buyer and a seller to outline the terms of a transaction. An exclusive sales and marketing agreement is a contract between a company and a sales and marketing firm that procures their services for the company.This business sale agreement template can be used as a binding document to govern the sale of a business to a new owner. Use this free advertising agreement template next time you engage a new agency or freelancer for advertising work. Below are free resources available to help you and your business. Toggle between the categories and explore. The filing process requires businesses to detail total sales in the state, the amount of sales tax collected and the location of each sale. The local tax rate is determined based on the seller's location because Pennsylvania is an origin-based state. Allegheny argues that, absent a specific itemization in the AST Purchase Agreement that.