You can often call the utility company and get the past monthly average for the two years which might help.2: be sure to account for exterior maintenance including snow removal.All that said, if you are this far into evaluating, go take a look and see if it is something worth pursuing further.

For the sake of this discussion, let's assume all due diligence on the properties has been done and I've decided that a deal to purchase 2+ of the properties is worth pursuing.Thanks!

If you've got a lot of assets and net worth then an LLC is an option.

The CFRI is so expensive in my opinion to be a member, I'm sure it's worth it though. 

It's going to cost you a share of your profits, but it might be worth it to you for peace of mind and for the experience you will gain in the process.

It's risky, but if you're willing to throw money at it, it may be worth it.

If your option is to take the entire $625K and 1031 into another property it is not really worth the effort.  

To illustrate this better, lets say the house would be worth 170k IF the foundation had no issues.

Is it worth it to fix?

Take a look at your financing package and understand what your total annual increase in net worth is.