Interpretation of the Fl statute 83.53 the landlord to enter the dwelling unit from time to time

Landlord entered dwelling in January 2021. (everything was fine with inspection) Took pics of every room. It is in lease they may do this. They also have in lease the exact statute listed above. However, I need an interpretation of the "from time to time" and under what conditions may they continue enter? Six months later they want to schedule another inspection on 6/30. I emailed with 6/28 and 6/29 would work for me not the 30th. They emailed back and said they won't reschedule without a $45.00 fee. First, I find this an invasion of my privacy. Second, they have no reason to enter every 6 mths. I'm quiet, don't bother anyone. I pay my rent first of every month. Recently I contacted them to replace a screen in patio screen door. Covered under miscellaneous repair items for tenant to pay. They offered to take care of it, for a fee, I declined. I took care it. I'm no problem to anyone. I feel they are looking for something they can charge me for. Is it unethical? Feels like it