This was close to the top of the market, so I ended up underwater when the market crashed, but guess what - my tenants made my mortgage payments and I was living rent free, the fact that I had negative equity did not impact me at all.

If your marking your profit numbers after factoring in your hold costs, then you are good.Also, I was flipping houses during the 2008 crash and bank financing disappears when the market crashes.

Or is it just trolling around the bay unattended ready to crash 

In the past year we sort of got screwed out of a city because 8 months into the process we realized the city didn't want to help at all for our $10,000,000 project (largest development in that town since the 08 crash).

Nothing in that means that a crash   correction is'nt coming.   

The fear is that this sale will cause the gold market to be flooded and crash.

Turkish lira has crashed but I'd imagine any new start up development is in serious risk of being put on hold if the developers are local, so that's also a potential issue.

I have one property with a fifty plus year old furnace, works fine (not that efficient I'm sure) but it could crash any day.

There are many subdivisions throughout the country that have unfinished lots from when the market crashed. 

Hi  I started in investing in 2007 with short sales but that all crashed and i kept my day job.