Advantage Tax Resolution are not Tax Attorneys as per:
http://members.calbar.ca.gov/search/member_adv.aspx
Nor are they CPA's.
I have researched:
http://www.calcpa.org/public/referral/findcpa.aspx
and entered under firm name:
Advantage and Resolution and there are no listings.
There are also no listings under:
•Darrin Lee
•Frank Stiner/Steiner
Feel free to call me [email protected]
As I have been ripped off myself.
When I engaged their services I had to contact the IRS asap. They never contacted the IRS on my behalf and now I'm in collections with the IRS. And out of $3, 900.
I am in the process of putting a class action suit together.

Anyone interested must contact me asap as there is a deadline to enter your name.
E-mail me and I will inform you regarding the firm name.
Again, my email is [email protected]