xml is XML is xml is XML.cs

var xml = 
@"<?xml version=""1.0"" encoding=""UTF-8""?>
<report name=""ReportName"">
    <agency name=""agency1"">
        <office name=""office1""></office>
        <office name=""office2""></office>
        <office name=""office3""></office>
    </agency>
    <agency name=""agency2"">
        <office name=""office1"">
            <agent name=""agent Amy""></agent>
    <address name=""address line""></address>
        </office>
        <office name=""office2""></office>
        <office name=""office3""></office>
    </agency>
    <agency name=""agency3"">
        <office name=""office1"">
        <agent name=""agent Bettie"">
            <subagent name=""sub-agent bob"">
            <phone name=""456-789-1230""></phone>
            </subagent>
            <subagent name=""sub-agent billy""></subagent>
        </agent>
        <address name=""address line"">
            <faxnumber name=""1234567890""></faxnumber>
        </address>     
        </office>
        <office name=""office2""></office>
        <office name=""office3""></office>
    </agency>
</report>";
var names = 
	XDocument
		.Parse(xml)
		.Root
		.Descendants()
		.Select(x => x.Attribute("name").Value)
		.Dump();