i like the colours in all of these,
im not so sure about the key - i know its "turnkey" but i dont think we need a key in the Logo
The shopping basket is a nice touch, it suggests e-commerce solution, maybe it could be a shopping basket showing the kinds of products that can be marketed or something like that... the product will be used to sell no end of different products, from properties, to property rentals to toys to cars....
I VERY much like the simplicity of 14, 21 and 19.