Realtor.com had 8 of 9 listings from the MLS. I am not sure if some sites are better than others for getting your due diligence underway. I usually use the MLS, of course.
Feel free to pitch out more about what you are trying to do and perhaps why. I wouldn’t mind throwing in my two cents.Besides the RE license, I am a general contractor.
More info,makes it easier for the rest of the piggs to give you feedback too,if you want any beyond your specific question. Many people here have knowlege that compliments that of the of the real estate types on these projects.