Social Media Management/Content Writing

I'm starting a new Executive Coaching firm and need to have all my social media updated. This will require that the platforms (linkedin/Twitter/Facebook, etc) are aligned and leveraged. The company is a small startup and initial only has a few clients. Howerver, as we look to grow would like to have most of the marketing done thru our Web, and online with social media. This project will be used to build that foundation.