I am moving into an house that have being sitting empty for awhile, the house if fully load with furniture,?

Yes. There is snake repellent available at Home Depot, Lowe's and other stores that carry gardening supplies. It's most unlikely, though, that snakes have homesteaded inside the house. Unless, that is, the place is also loaded with mice. In the normal closed house, there is not enough food and water available to attract a snake. If you have concerns that there may be snakes in the house, turn the air conditioner to about 60 degrees and let it run for a day, or open the windows on a chilly night and let the house get cold. It may cost a few dollars, but the snakes will abandon the house for warmer climes.