With you being a sex offender and all, I'll recommend the Dirty Carpet, oops I mean to say, Red Carpet Inn. It's about a mile and a half northwest of the control tower at KFLL.It's on State Highway 84 just west of I95 on the Marina Mile. Last time I checked they got around $35 per night. If the Dirty Carpet doesn't suit ya, go next door to the Airport Inn.
Other than that, I'll guess that your stuck with the usual $100 and up joints.
enigma