A quick definition of practice of law:

The practice of law refers to the work of a licensed lawyer, which includes a wide range of services such as representing clients in court, preparing legal documents, giving legal advice, and drafting laws and court rules. Unauthorized practice of law is when someone who is not licensed to practice law engages in legal activities. This can be controversial, as some argue that non-lawyers may not provide the same level of protection and expertise as licensed lawyers. However, some jurisdictions allow non-lawyers to provide certain legal services under certain circumstances.