This letter tells customers that you support a cause of importance to local residents. This is a great chance to let customers know that you care about issues that matter to them.
1234, Main Street
Boston, MA 02123
<Recipient Address Goes Here>
We at Abc Company are aware of <description of local cause>, and we just want local citizens to know that we are fully in support of those who favor <the side you support>
We believe that <describe your company's position in relation to the cause>. We at Abc Company will continue to be active in local issues whenever possible. Thank you for your time.
encl: <List of enclosed items goes here>