Washington case law has determined that these issues are a civil matter between the neighbors involved. Though a dead or dying tree may pose a risk to property, there are no mechanisms by which the City may intervene in this case. If the tree(s) can be assessed from your property without entering your neighbor’s property, you may hire an ISA Certified Arborist to complete an assessment of the tree(s) and provide a report. This report may be useful in talking with your neighbor about the tree. You can search for an ISA certified arborist on the website Treesaregood.org.