When is it right to have a full-time human resources professional on your staff? The general standard is one HR professional to every 100 employees. However, federal and state employment laws affect employers of every size, even an employer of one. Oftentimes, owners or managers of small businesses simply don't have the time or acumen to learn and address HR compliance matters. As state and federal employment laws are updated, an HR professional helps employers understand how to operate legally while aligning company policies with employer and employee rights. Employment Law compliance is not only mandatory, it results in a structured workplace with clearly established parameters for employers and their employees.