@Travis TimmonsI had the same reaction as you did, but I held off on posting since I don't yet invest in STRs (I'm all LTR so far, and looking into my first MTR).Buying an STR "to offset income" makes me nervous as well...

That would be great if you can post the study here.P.S what are your thoughts on PropertyRadar(I hear they do daily updates I dont know how true this is though) and Listsource by core logic(the site claims daily updates)? 

If you are really stressed about the timeline, you can do a reverse exchange and buy your replacement property FIRST, sell your current property later.

While the heater issue adds extra stress, addressing it promptly will protect you from further fines and penalties.

In addition, while the umbrella did not end up having to pay out, having it meant I did not stress about it at all.  

Find a valuable agent to list them, or work with @Dave Foster to 1031 properties, and you'll be less stressed. 

The feedback seems a bit general or maybe you just condensed it for the post...If not, I'd personally have a chat with your agent about what they are asking in those follow-up questions and hope they are assertively making those follow-up phone calls with your showings.

It allows you to skip the stress and time-consuming process of managing rehab projects and focus on the cash flow aspect. 

Transparency is key—being honest will help you avoid unnecessary stress and ensure peace of mind.

Until then it can be really stressful.