No and yes.  A writing tutor is not an editor; she will not take your paper, correct it, and return it to you. Your writing is yours; to have someone else change it in hopes of a better grade is unethical. However, your tutor will collaborate with you to improve your writing by explaining to you what needs to be improved and the ways you may accomplish that improvement.  Keep in mind that most writers believe their papers' grammar/spelling/mechanics problems are the most serious trouble spots in the writing.  However, many writers need to understand their papers may have problems with organization, development, or coherence which weaken the writing far more seriously than misspelled words or comma splices.