I have a question. Is there a simple way for me to post my property ad in one place, and then it sends my property ad out to Zillow, Realtor.com, Trulia.com & Redfin all at once?
Yes. List it on the MLS. In the simplest of terms, it then feeds to other real estate sites like the ones you mentioned through IDX. https://placester.com/real-estate-marketing-academy/what-is-idx-explanation-beginner-agent/. The link explains it more in depth.
Okay cool, so it does so automatically? I don't have to do anything expect post via the MLS?
You'll have to use an agent to gain access to the MLS to post it for you or use an MLS flat fee service that will post it for you. Or become an agent or realtor yourself and have your own MLS access.
My brokerage posts our listing to an additional 97 sites that don't receive automatic idx feeds. I'm not sure how they do it as the how doesn't really concern me, but it's pretty cool.
Create Lasting Wealth Through Real Estate
Join the millions of people achieving financial freedom through the power of real estate investing