When completing the form you must: • List all assets you own or control as of January 1, including those assets fully depreciated in your. The word "property" as used herein shall mean and include everything, whether tangible or intangible, subject to ownership.1.2 Definition of Personal Property. Attach a copy of the Sales Agreement or Bill of Sale to the completed Personal Property Asset Listing and return it in the envelope provided. Be sure to include your parcel or account number in the email. Sign up for reminders. For your convenience, Washington State law allows you to make two half payments. Walk through your home with the assessor to address all points affecting its assessed value.