Does anyone know of a good contractor that could help with estimates on a flip in Charleston, SC? 

Ask: Any Cincinnati Investors recommend any General Contractors that I would be able to walk a property with to get more accurate rehab estimates?

With an estimated 100 new people moving to Austin each day, it seems these 30k new homes will help keep inventory in line with demand.

Sounds like you have a solid spread so I would start lining up your contractors to get estimates and bids so you can hit the ground running once you close. 

I estimated that I would need $100/sq ft to rehab it (around $145k in rehab costs) and the ARV would be around $375k (likely $400 but I want to be a little conservative).

In The Book On Flipping Houses, J Scott says that in order to be a successful house flipper, you need to be a crackerjack estimator.

@Louis Jeffries thanks for the reply, the owner estimate for the one unit rehab is $15k, but if they fix it I’ll be all in at $240k, plus closing.

Hi BP, no matter how many times I re-read David Greene's "Long-Distance Real Estate Investing" book, I still have trouble understanding how to quickly estimate rehab costs when you are looking at multiple different potential deals being sent over from out of state.  

Do you have to pay for an appraisal on your current property or do they use an estimate?

For the main items called out, did you talk to a licensed contractor in that trade to ask them what the estimates to repair would be?