Composing an SOW usually falls on the shoulders of project management to complete.

or there may be a team that comes together and composes it. Inevitably, it all depends on the size of the project and who authorizes it. With small-scale projects, it’s usually just one person that deals with the statement of work and create it. For bigger ones, a team must come together to compose a more detailed one.

Furthermore, there are two ways to write and send off a statement of work. Firstly, it can be created on its own and sent to contractors, giving them details of your job. Or, it can be used in conjunction with a request for a proposal. Here, you send off your statement of work along with your request, and the contractor will reply with their own proposal. So, you get a bit of input from the freelance contractor as you see their proposal, but the actual statement of work and scope of work are still written by the project management team. After all, who better to create a plan of action for a project than the team that’s in charge of putting it all together?

More info: websites for freelancers