Wills and Estates

What happens if the estate of my Father only consists of what I understand is only personal property exempt under Florida Law?

My mother died in 1999 and my Father just passed in January, 2017. His estate only consists of a bank account containing $40,000.00, a car valued at $4,000.00 and person property. The total value is only around $60,000.00. He did leave a Will leaving everything to me. Do I have to go through probate? If not what is the procedure in Florida I need to follow?

Is it legal for a spouse to waive rights provided by laws dealing with spouses being entitled to elective share, renunciation, homestead, and other rights?

I need to know if an agreement to make a Will leaving property to a specific person is valid in Florida. The reason is that my Mother has a young person that is her caregiver. I just found out that my Mother executed a documents agreeing to give the person her property if she would care for her. My Mother is 86 years old but still very competent.

If I was left $50,000 dollars in my Fathers Will but my siblings say that because my Father gave me $50,000.00 before he died that I am not entitled to another $50,000.00 as stated in his Will. The money he gave me was given after he made his Will. Can I get the money provided for in the Will? They say it was satisfied by the money he gave me. He lived in Florida.