Download the Act 50 Applications(PDF, 1MB) and complete it. You will need to file the Declaration with the Clerk and Recorder's Office in the county where the homestead is located.Need More Information? To the professionals at my local Clerk and Recorder's Office,. Fill in the parcel number of the property for which you are seeking a homestead exclusion. You can find the parcel number on your real property tax bill. Montana State University Extension has an updated MontGuide about filing a homestead declaration and the benefits it gives homeowners. Learn which national parks charge fees and how much it costs at each park. Beachler Edwin H 312 Blvd Allies. Have questions about the National Park Foundation?