First, look up the address of the property on the Sarasota County property appraiser's website and see who is the owner of record.
Then, using that owner of record, go to the Sarasota County Clerk of Court website and under official records, do a search for that owner's name and see what comes up. If there is a Lis Pendens filed, then the property is in foreclosure. The attached document (which you can see as a pdf file) will show who is the attorney of record for the foreclosure and have contact information.
If the property is in foreclosure, there will be additional charges and legal fees on top of the owner's mortgage that must be paid off before the home can be sold to you. Sometimes those legal fees can add up to $30,000 or more.
After verifying whether the home is in foreclosure or not, I would suggest getting with a lender as a 2nd step to see what you can afford in payments and if this is even something worth pursuing on your part. Remember, you also have to factor in property taxes and insurance on the home in your monthly payments. You'll also need to decide if you can afford home ownership, because you become responsible for big maintenance items like leaking roofs and broken AC units.
If, after talking to a lender, you do decide to go forward, I would suggest don't sign anything with this property owner without consulting a local real estate attorney first. The attorney can do a search for liens on the property (so there are no surprises), plus put together a purchase contract for you that protects your interests in the transaction. Boiler plate contracts from big box stores leave a lot of things out.