Complete the Financial Proposal Form only as provided in the Financial Proposal Instructions. In this article, we discuss how to write a business proposal letter and we offer sample letters and templates you can use as a guide.Instantly draft and send a business proposal template to establish the terms and conditions between your business and clients. Learn how to write a professional proposal letter that impresses potential clients and win over new business. Tips and templates included. Download Maryland Request for Proposal template, modify and send for signing using BoloForms Signature. Professional services proposals define the scope and timeline of a project. Get it right and it helps you win more clients. Within the Contract Affidavit, Foreign = Business NOT based in Maryland. THE PRICE PROPOSAL (ATTACHMENT A), must be electronically filled out, signed.