Attention: Effective September 2, 2024 all Request to Purchase applications must be submitted through our online portal. After being approved to purchase, a proposal to buy the property must be signed.A Pennsylvania residential purchase agreement establishes a legal arrangement between a buyer and a seller in a real estate transaction. Learn how to craft a standout property offer letter with essential tips and a free template. These sample forms may be useful when filing documents for the civil and family courts. If you have any questions, consult an attorney. Section 2. PURCHASES. 2.1. Specifications. 2.2. Standardization. 2.3. Requisitions. 2.4. Confirming Orders. 2.5. Received a mailer from Allegheny County requesting confirmation on some details about our home, etc. Property has been assigned lot and block number (fill in).