Bulk Photo Color Correction

I’m looking to hand off a large batch of more than fifty images that all suffer from flat contrast and uneven exposure. What I need is a clean, consistent adjustment of contrast and brightness—no background... (Budget: $250 - $750 USD, Jobs: Adobe Photoshop, Color Grading, Image Consultation, Image Processing, Photo Editing, Photo Retouching, Photography, Photoshop, Photoshop Design)