This form is required whenever a property owner grants authority to another individual to sign on their behalf when obtaining a permit. Please be advised that.A templated example of a Letter of Authorization (LOA) requesting authorization for inbound customer calls made to your business' Customer Support. This guide is designed to help you fill out the forms yourself. It is not intended to provide legal advice nor strategy as to how to complete the case. No information is available for this page. Find forms, samples and fees for most business entity filings here. About Los Angeles Unified.