Accountants
Dickinson & Diluzio LLC
6325 Peachtree Dunwoody Road # 250 Atlanta, GA 30328
Accountants
Dickinson Dennis J
9000 Central Parkway Atlanta, GA 30328
Accountants
Diluzio & Henssler Inc
5565 Glenridge Connector # 200 Atlanta, GA 30342
Trust Services
Wamu Mortgage Pass-Through Certificates Series 2007-Oa1 Trust
1301 2nd Avenue Wmc3501a Seattle, WA 98101