ISO: Afternoon Dog Walker

Hi all! Thank you all for the recommendations for a cat sitter this past summer - it was extremely helpful! We are now in need of recommendations for an afternoon dog walker. Someone who would be able to come around 4pm M-F and walk our two dogs (1 65lb and 1 30lb) for half an hour. Our 65lb dog Rocky is gentle but strong thus the right person would be someone who knows dogs extremely well and has some strength themselves:) Gracie is a breeze. Thank you in advance! Lisa (and Rocky & Gracie)