Hi Carlos. Congratulations on being able to buy a house without financing. With a cash transaction, your closing costs will be very minimal (usually only a couple hundred dollars or less) and will vary depending on the Title Company handling the transfer of property. If closing is through a law office, fees generally are higher in my experience. Some sellers of bank owned properties require the buyer to pay State documentary stamps.
If you own a home free and clear, you are not required to carry home insurance although it would be wise to do so. Property insurance rates vary depending on deductibles, location, etc. Try http://www.shopandcomparerates.com
Good luck in your home purchase. If I can be of any assistance, call me any time on my cell at 727-541-3743.

Darla Schroeder, Realtor, GRI, e-PRO
Century 21 Real Estate Champions
4350 Duhme Rd
Madeira Beach, FL 33708
darla.schroeder@century21.com

Depends where you buy. There may be CDD and/or HOA fees. Your closing fees would probably max out at 2% of the sales price. Olease provide more details for a better answer