Sell overpriced shares with minimum losses

Right now, I'm looking for a freelancer to help me sell a large volume of shares that are currently above market value. I have more than 5000 shares with a target goal to sell them within the next one to three months. Having a background in financial planning and stock trading will be especially helpful in this task, as I need someone who can get the most money from the sale while minimizing my losses. Experience with trading stocks on the market and finding buyers quickly will be highly beneficial. If you have what it takes to help me out, please let me know. Thank you!