The foundation employs a uniform set of standards for its easements and the guidelines to administer them. These are designed to be consistent with federal, state and local preservation guidelines. However, specific arrangements for each easement are developed to respond to the circumstances of individual properties and their owners. The Foundation works with potential donors to establish a description of the portion of the property to be conveyed and defines the standards by which preservation will be assured. 

Preservation and conservation easements are accepted for buildings, structures and sites having historic and scenic value. Easements are donated in perpetuity.

At the time of conveying the easement, the foundation also receives a cash contribution, which assists in covering costs to monitor the gift.

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Some basic terms of a typical easement:

1. The easement is in perpetuity.

2. Reasonable public access must be provided.

3. Affirmative maintenance is required.

4. Any alterations, repairs or improvements must be approved by AEF prior to initiating work.

5. Demolition of the property is prohibited.

6. All features in the easement will be available to AEF representatives for an annual inspection.

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Note that these terms serve as a starting point, and that specific conditions will be tailored to each property. These typically exceed those set forth in local historic preservation ordinances.