And, this was handled directly with the subcontractor (meaning, no GC markup and I take care of the legwork involved with permits and utilities).I would guess the prices vary significantly based on location - labor costs and environmental regulations would have a huge impact on this. 

You will most likely need an environmental report, and the appraisal is going to be more costly too.The larger title companies like First American and Fidelity have rate calculators that can give you an idea of closing costs, but I'm not sure if they support commercial properties.

Unless Buyer exercises the right to terminate granted herein, Buyer accepts the physical condition of the Property and any violation of governmental, building, environmental, and safety codes, restrictions, or requirements, but subject to Seller’s continuing AS IS Maintenance Requirement, and Buyer shall be responsible for any and all repairs and improvements required by Buyer’s lender. 

I am not an expert on this, but I heard of an older dentist office near me a while back that had some environmental issues.

Any environmental issues with the building or land?

Great location 'technically' but a crazy environmental issue right next door. 

I also highly endorse Jonathan Hoover with Aegis Environmental if you need help in Indy for underground storage tank remediation and for all of your other environmental cleanup needs.

The best you would be able to get is a Letter of Environmental Protection, which tells everyone you did illegal work then hired a licensed deleader in to fix it.

@Edwin Ramirez I don’t have a company recommendation, but look for one that does environmental testing only - that doesn’t do repair/remediation.

Is it wise to request a phase 1 environmental assessment before purchase?