Not sure what information you are looking for with this question. 

Anything in particular you're curious about or have questions on? 

Please reach out if I can help or if you have any specific questions.  

My question is: where does the realtor site get this info that this loan is assumable?

What's the question again? 

I love the opportunity to hear their stories, help them solve whatever problem they're solving, or, many times, simply move on in some way in their lives. 

I tell everyone they can apply no matter what their circumstance and if they follow up with questions about why they were not selected then don't expose yourself by telling them their downfalls.Hope this helps.

My questions is how does section 121 apply in our situation(married couple)? 

I think my biggest question is, whats your end goal?

@Bryan Leon, these are questions you are best asking the 1031 intermediary you will use for the deal.