The first thing to know about motions is that you have to respond to them and say why the other party's motion should not be granted. Motions can be granted if they are unopposed and you don't want this one to be granted. The store's lawyer wants to make this so complicated for you that you'll back off or lose on a technicality.
You can get an idea of just how complicated this can all be by reading the Florida Rules of Civil Procedure:
https://www-media.floridabar.org/upl...ted-1-1-19.pdf
I call your attention to Rule 1.010 on Page 10:
If it was me I would file a response to the motion saying that the motion should be denied because the Florida Rules of Civil Procedure expressly excepts Small Claims because Small Claims Rules apply.RULE 1.010. SCOPE AND TITLE OF RULES
These rules apply to all actions of a civil nature and all special statutory proceedings in the circuit courts and county courts except those to which the Florida Probate Rules, the Florida Family Law Rules of Procedure, or the Small Claims Rules apply.
Here are the Small Claims Rules:
https://www-media.floridabar.org/upl...all-claims.pdf
As for hiring an attorney, that's up to you and depends on how much money you are suing for compared to how much you are willing to spend on a lawyer at about $300 per hour.
Looks like Florida has a statutory warranty that YDR may qualify for:
http://www.leg.state.fl.us/Statutes/...s/0828.29.html

