I would say the Seller is highly motivated. The price was just reduced from $379,900 to $374,900 a $15,000 reduction. If you are serious you need to put your offer and escrow into a contract. Sellers and Seller's agent's are not going to negotiate without a written commitment. It is not in the Seller's best interest.
As for the numbers-the range is there. Assessed values are always much lower. Thank goodness we are not paying taxes on 100% of the value of our property. The assessor's office takes a % of the property value to come up with the taxable assessed value.
I agree with Annette, many sites spin numbers in all sorts of ways. Interview full time professional realtors, to find the one you want to work with. (If they can not make their living doing this, probably not the person you want assisting you with your largest purchase). Once you choose an agent go over your goals and needs. They will do a market analysis on any property you are going to make an offer on- and base it on comparable current sales to get a truer reflection of the current market and the price of the home you are purchasing.
If you are serious don't hesitate, the market is changing and prices ARE going up.
I feel an informed client makes the best decisions regarding their real estate needs. Let me know if I can be of assistance.
Broker Associate, GRI, SFR, NHS
Real Estate Consulting, Marketing & Sales
Prudential Tropical Realty
2539 Countryside Blvd #3 Clearwater, FL 33761