Does this cause any problems with taxes if i'm writing off most of what I'm spending for the renovation?

A treadmill doesn't cause a ton of noise/vibration/shaking.

Working before closing without property insurance is risky (stupid); we had a major pipe break caused by one of our contractors that cost us thousands Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

Don't feel beholden to one, cause they don't to you.

Since you are not in a hurry, I would pretend the delay is causing you grief but that you are willing to give him another 15 days.

It cost us $125, but caused us no stress thus far.

This causes a lot of homes to sit on the market for a long time and the longer they sit the better the deal you can make when you buy!

I do know that in California with recent changes many of the "programs" for addicts had funding reduced, causing some of the larger ones financial problems. 

@Cheryl J McGrath there are many calculators, spreadsheets, and resources out there for analyzing properties, but there's no fool-proof app that can tell an investor everything they need to know about a property--because REI involves a LOT more than just data.For instance, a musty smell in the basement caused by water intrusion, a neighbor with a loud barking dog, a floorplan that's awkward but that could easily be re-arranged, significant settling, the location of load-bearing walls, the routing of electric, HVAC ducts, and plumbing  --these are just a few of the MANY factors that might cause me to buy (or not buy) a property, but none of these factors will be conveyed in data or on an app. 

You wrote in your post the property needs rehab so you might already proactively address some of the repair issues that cause older building to fail...BUT...do not expect an easy ride regardless.