One of the most important things you must do as an author to make your work stand out is to create vivid characters readers will remember. One way to add color to your characters is by giving them a regional accent. Capture it in writing by deliberately misspelling their dialog to reflect how it sounds phonetically. Just make sure you’re familiar with what that particular accent really sounds like or anyone from that region will recognize it’s not authentic, which could do you more harm than good. Accuracy is always important.