I am having the same hesitations right now. As much as I am interested in seeing what properties you have to offer, there is very limited information available about your company.
Past deals, an example or two of current deals, references, providing any of those things on your website would make me feel more secure. But to have none of them and to be required to sign a legally binding agreement that also requires I reveal to you my home address prior to know ANYTHING about you is sending up a serious red flag.
I understand wanting to cover yourself, I respect the purpose of the NCND. The issue is that your company has provided zero peace of mind. Sx2usa may be a legitimate, moral and reputable company and the optimist in me thinks it probably is, but your marketing has done nothing to reassure us of that.
Until I receive information that establishes legitimacy I would never sign anything or reveal personal information.