What document often defines the relationship between owner and property manager?

The document that most accurately defines the relationship between the owner and the property manager is the property management agreement. This agreement outlines the responsibilities, obligations, and expectations of both parties involved in the management of the property. It typically delineates the scope of services the property manager will provide, such as rent collection, maintenance responsibilities, and tenant interactions, along with the compensation structure for the property manager's services.

This agreement is essential as it helps to establish clear communication and understanding, which can prevent disputes and clarify roles within the landlord-tenant-property manager dynamic. The other options, while related to property management, serve different purposes. A lease agreement governs the relationship between a landlord and a tenant, not the owner and the property manager. A sales contract pertains to the sale of property rather than management, and a tenant application is a preliminary form used to screen potential tenants, not to define relationships between owners and managers.