NOTE: these rates are not set in stone and are only an average for this editor. The actual rate applicable to your document will depend on the depth of the edit, the quality of the writing, the topic matter, the proximity of the deadline, the length of the document and several other factors.
As a secondary English teacher for 35 years, I have developed the skills necessary to proof any type of writing. Much of my experience is in senior composition classes that have included MLA research guidelines and all proper grammatical and punctuation rules. Since I would have afternoons and weekends to do this work, I should be able to accomplish such with a relatively quick turn around.
I would also be able to compose any type of writing that may be required to accompany the above proofreading and editing work.