My question involves criminal law for the state of: Florida

Hypothetical situation, I'm curious about the legal handling of the ethical situation.

Person A finds that Person B has stolen an important item from his/her home while B had been a guest in A's home. A has no proof other than B being "the only person who could have opportunity."

A breaks into B's house and retrieves his/her own property that was stolen, without disturbing any of B's property.

What would the situation be, legally, should any of it make it into the criminal/legal system?