Based on the provided content, handling potential disputes regarding budget and timelines involves a structured hiring and documentation process aimed at establishing clear expectations from the start.

To manage these factors effectively, you should perform the following steps:

• Obtain Detailed Written Estimates: Request at least three written estimates that are fully itemized. These must clearly outline the total scope of work, specific materials and pier systems to be used, a detailed project timeline, and a clear payment schedule.
• Insist on On-Site Inspections: Ensure that any quote you receive is based on a thorough on-site inspection. The content notes that contractors cannot provide accurate or binding estimates over the phone; estimates are considered preliminary until the site, soil conditions, and structural needs are evaluated in person.
• Verify Credentials and References: Research potential contractors through online marketplaces and the Better Business Bureau. Request and contact references from previous clients with similar projects to verify the contractor’s reliability in completing jobs on schedule and within the agreed quality standards.
• Consult Professionals for Diagnosis: For definitive diagnosis and design recommendations regarding the structural needs of the project, it is advised to consult a licensed structural engineer.

Following these steps helps ensure that both parties have a documented agreement on the financial and temporal aspects of the project, which serves as the primary tool for resolving or preventing disputes.