Relationship Coordinator. At. Blankenship CPA Group, PLLC. our roots are deeply planted in serving Nashville's growing business and professional community. Blankenship is a Top Ten Nashville public accounting firm of approximately 200 professionals. We serve our clients' Tax, Audit, Accounting, and Consulting needs in the Nashville, Tennessee, and middle TN market through our experienced accountants in our Brentwood, Columbia, Dickson, Goodlettsv...