However, it's important to have a Plan B, just in case your former employer doesn't convert to a client. Having a network of referrals and clients ready, just in case your employer doesn't become your first client. Preparing marketing and publicity materials to help sell your services. Networking at professional meetings and events. Identifying all your options before you resign.
Opportunity always exists in times of great flux.
Make sure you maximize your opportunities in the transition to free agency. They might perceive you differently, and some could make the transition difficult. Don't waffle during your resignation discussions. You'll come across as reluctant or indecisive, and your supervisor might not want to steer work to someone who doesn't seem committed. Tell the organization you're moving on to the entrepreneurial world, but would like to remain a part of the team.