You are not reading the statute correctly. Florida Statutes, Sec. 83.52 details the duties of a tenant, not the duties of a landlord. If a tenant does not fulfill those duties, the landlord may seek to evict the tenant, but they may also choose to ignore or forgive the conduct and let the tenancy continue.
Quote Quoting Florida Statutes, Sec. 83.52. Tenant’s obligation to maintain dwelling unit.
The tenant at all times during the tenancy shall:

(1) Comply with all obligations imposed upon tenants by applicable provisions of building, housing, and health codes.

(2) Keep that part of the premises which he or she occupies and uses clean and sanitary.

(3) Remove from the tenant’s dwelling unit all garbage in a clean and sanitary manner.

(4) Keep all plumbing fixtures in the dwelling unit or used by the tenant clean and sanitary and in repair.

(5) Use and operate in a reasonable manner all electrical, plumbing, sanitary, heating, ventilating, air-conditioning and other facilities and appliances, including elevators.

(6) Not destroy, deface, damage, impair, or remove any part of the premises or property therein belonging to the landlord nor permit any person to do so.

(7) Conduct himself or herself, and require other persons on the premises with his or her consent to conduct themselves, in a manner that does not unreasonably disturb the tenant’s neighbors or constitute a breach of the peace.
A landlord's duties are described at Sec. 83.51.

If you were threatened by your neighbor, and you believed the threats, you should have made a police report. If the threats rose to the level that you were in legitimate fear of your life or safety, or somebody else in your household felt that level of legitimate fear, you or they should have sought an order of protection. If you chose not to seek help from the police or courts, then you have little basis to accuse your landlord of having failed to act to protect you. If you did so and were found not to have described conduct that rose to the level of a crime or that would justify a protective order, then your landlord would have little basis to try to hold your neighbor responsible for whatever dispute or quarrel you were encountering.