Nope, legally technically not until she actually breaks and “enters”. Until then she is not an “immediate and eminent physical threat”, there is still a physical barrier between you... Technically you almost have to let them get their hands on you before you can defend yourself.
Not in Florida. We have a “Stand Your Ground” law and the “Castle Doctrine”.
Here’s the subsection of the statute.
“A person who unlawfully and by force enters or attempts to enter a person’s dwelling, residence, or occupied vehicle is presumed to be doing so with the intent to commit an unlawful act involving force or violence.”
The Mom was attempting to enter her dwelling by force. The shooter will walk if the Jury does the right thing.
This is from the Florida statute; Justifiable Use of Force Title XLVI, Chapter 776
Section 776.013 Home protection; use or threatened use of deadly force; presumption of fear of death or great bodily harm.—
(a) The person against whom the defensive force was used or threatened was in the PROCESS of unlawfully and forcefully entering or had unlawfully and forcibly entered, a dwelling, residence, or occupied vehicle,
Note the use of the phrase “in the process of.” You do not have to wait for the successful completion of the unlawful entry.