thanQ baker!
some quick thoughts
if you think MIRROR. the letters are: BTBSR.
quick search on internet brings up an LLC in Oregon, 1 owner listed as ROSE LAW FIRM.
https://opencorpdata.com/us-or/70883492#overview
I know Clinton law firm in Arkansas was Rose Law firm. not sure if related. Adam Rose is listed as principal.
company site https://www.rose-law.com/ corporate law, complicated business dealings/real estate, mergers, etc.