Your initial post said it was listed on Zillow . . . your second one said it was not listed . . . that makes a difference. If it is listed with an agent, trying to side step the agent is not going to gain you anything since the seller (owner) has a contract with the agent that gives him a commission on sale regardless of where the buyer comes from. The agent likely has an idea of what the property is worth so keep that in mind . . . of course there are always gems that agents overlook to get it listed. If it is listed, how long has it been on the market? Look at the listing on Zillow and it will show you how much interest there is (views and saves). That can tell you more about the interest in the property and what other investors think of it. If you are comparing it to the house next door - what is the condition of the one you are comparing it to and how long has it been on the market for. Remember, look at sold not list prices as they are often different especially as markets cool.
If you are considering a BRRRR, what are rents in the area and what neighborhood is it in (A, B, C, etc.) Use the BP calculators to see what the ROI is and try different scenarios. You may find one out performs the other by a lot especially with interest rates (and HML rates can kill what might look like a good deal otherwise).
I would be happy to take a look at the specific property you are interested in . . . send me a message with the address rather than posting it here. Will see what the numbers look like and give you some questions to follow up on. Don't worry, moved back up north so I am not in the Florida market anymore (and don't do long distance)