Anthony,
Adding to Erin’s points about incorporation, consider that you can incorporate at any time, so you can start as a sole proprietor and shift structures when the right time occurs.
How you determine that right time depends on: 1. if your customers will hire you as a sole proprietor (i.e. governments won’t hire sole proprietors as it does not align with their risk mitigation strategies, 2. when business profits are about $50,000 per year or higher, this is when the tax advantages offset the additional annual costs for being incorporated. In other words, point 1 is based on marketing considerations and point 2 is based on financial considerations.
Judy