The weather is great and some offer better prices outside of summer. 

General question: outside of renting tools from a brick and mortar store, are there any web applications, mobile apps, or online marketplaces where people share construction/remodeling tools peer2peer (similar to turo, Airbnb, etc)?

Those 100% no money left in type deals do not exist anymore in real life outside the get rich quick class. 5+ years ago those strategies did work on rare occasions but you still didn't need to pay a guru with all the free info on BP.

So if they're not a lot you may be better off either paying a little in tax and doing the improvements outside of the 1031. 

Do realize there are other mortgage products out there outside of the FHA loan that could be beneficial. 

@Adam Kuszczak most major metro cities will follow the same pattern...the "inner city" will be largely original housing stock...late 1800s to mid 1900's...developments typical radiate from the city center with age...so, 1950's through 1980's built properties are usually 3-5 miles from city center with the newest concentration of properties outside of interstate bypasses (usually forming a circle or partial circle around metro areas)...there is infill building and exceptions to these rules, but property age will be your #1 determining factor of where the properties you are targeting will be located.Building materials and methods of construction (along with codes) were very different from one decade to the next, but homes are surprisingly sturdy and most anything can be fixed.

Maybe bump up your ownership to more expensive areas.Maybe more out side of Denver Proper.

Outside of town by a few miles so it feels rural. 

It is a large beautiful building outside of town a few miles on a great lot.

The repairs needed mean that I can not insure the property (outside of liability) until fixed.