Casper has grown wildly over the last decade or 2, but has a slightly sprained ankle so it has slowed a bit. 

No set standard and varies wildly but most will charge for this.  

I have written before on Bigger Pockets extensively about Tax Sales, so I won't repeat here all the wild, almost unbeliveable properties on the third picked over Tax Sale.

And this lady has done that.

@Zach Coffey welcome to the wild world of real estate investing.

All of this is negotiable, it's impossible to state what "market" is for these types of loans because they aren't widely reported, and folks who do this all day long probably have experience with wildly different loan terms than the examples I used here. 

Cost per square foot will vary wildly between places like SC and Colorado largely due to the labor and materials varying between those markets. 

She is a busy lady but if you post your questions and tag her she very well may be able to help you out.

I found a lady on Craigslist that only charges me $60. 3 bedroom 2 bath.

The lady above talked about kindness and I agree.