Barth Law, PLLC

Barth Law, PLLC is a Louisville, Kentucky law firm serving businesses, individuals, and families in immigration, business, commercial, and intellectual property matters. The firm represents employers across Kentucky and nationwide that seek to recruit, transfer, and retain foreign professionals. It also assists families with bringing loved ones to the United States and guides lawful permanent residents through naturalization. Small and midsize businesses rely on the firm for practical legal support involving formation, operations, transactions, contracts, and long-term planning.

Barth Law, PLLC approaches each matter with personalized attention, direct attorney involvement, and careful preparation. Clients work closely with founding attorney William A. Barth and the firm’s experienced paralegal rather than having cases passed to inexperienced associates. The firm explains legal requirements in understandable terms, gathers the necessary information, and prepares comprehensive filings or agreements. This hands-on approach helps employers, entrepreneurs, individuals, and families move through complicated legal processes with responsive communication and a clear understanding of the steps ahead.

Barth Law, PLLC handles employment-based immigration matters involving H-1B, L-1, TN, E, R-1, and O-1A visas, along with labor certification, PERM applications, and employment-based green cards. Its family immigration services include fiancé and spousal visas, family petitions, adjustment of status, permanent residence, citizenship, and naturalization. The firm also advises entrepreneurs, corporations, nonprofit organizations, limited liability companies, and other entities on business formation, governance, shareholder and partnership agreements, employment policies, vendor contracts, real estate transactions, succession planning, and outside general counsel needs. Additional services include trademark registration, copyright protection, licensing, and intellectual property issues connected to business transactions.

Barth Law, PLLC is led by William A. Barth, who has practiced law since 1982 and has devoted much of his career to employment-based immigration. His background also includes decades of work in business and commercial law, trademarks, and copyrights. The firm’s combination of immigration knowledge and business insight allows it to address workforce and operational concerns together when matters overlap.