@Dustin Miller The exceptions for prorating are related to [unexpected] circumstances that force you to move (e.g. change in employment, unforeseen medical issues, etc).

We have got Side A about 90% gutted but we ran Into a lot of unforeseen issues with side B that we have had to throw money into.  

All because of unforeseen stuff overlooked during inspections.But you know what, I'm ok with these mistakes.

And an unforeseen reason will only fly as far as a grumpy field auditor will allow it.Sorry, but claiming double top secret CIA status still may be your best bet - or 1031.  

I'm doing another one now and with some unforeseen plumbing issues, I have an extra $1k in rehab...but I can afford to pay that so it's ok and I'm not stuck.

My main concerns were stagnation in the pipes, the small weeping of water in the basement at the sprinkler pipe manifold, and any maintenance or unforeseen one time costs.  

The 12 month requirement can be waived under several circumstances such as loss of job, moving to a new job, death in the family or family care being required of you or other unforeseen events that cause a hardship. 

is: there will be (large) unforeseen costs sooner or later!

Chris Gerenser it all depends on your strategy but buying a property too close to market value can put you in a serious bind if you had to sell for unforeseen circumstances.

Unforeseen events come with any business...Keep it Moving!!!