The business is very different than it is in the US. Deal are mostly cash because financing takes so long, you'll lose the deal. Engage an specialty lawyer.
You can do this safely, as some respected firms like Coldwell Bankers deal in Aruba, and as a buyer they will give you the benefit of their legal assets.
You should be aware that the price of real estate is going to be high. The cost of living is moderately low, but the homes are selling at high market value.
Make sure you have a passport and other documents needed to travel to Aruba and make overseas transactions. There are many realtor's in Aruba that can help you find and make your purchase. You will pay a yearly rate for property owned there about. 40 percent of the property's value.