RoseMcKenna, PLLC | 141 followers on LinkedIn. RoseMcKenna PLLC is a boutique accounting firm dedicated to providing the absolute best in personalized and professional | RoseMcKenna PLLC is a boutique accounting firm dedicated to providing the absolute best in personalized and professional tax services. Led by former “Big 4” accounting professionals, we put our extensive knowledge and proficiency with complex tax law in service of our clients. This includes inbound and outbound U.S. taxation, charitable planning, estates and trusts, executive compensation planning, and many other complex situations.