Say what and where in your headline:
Need 2nd Gen. Rest. - S. Lee County
Put a summary of the specifications in the first two lines of the post:
Client needs about 2,000 - 3,000 of sq ft for fast casual dining, prefers well anchored neighborhood center in S. Ft Myers, Estero, Bonita Springs.
Add as much additional detail as you wish.
Include your name and contact information; phone & email.