A Phase I environmental site assessment is a records and site review by an environmental consultant. No drilling, no lab work. On a simple retail box it typically runs $2,500 to $4,000. A Phase II is the follow-up when the Phase I flags a concern, like a former dry cleaner or gas station on the site, and that's the $15,000-plus item because it involves soil borings and lab analysis. So @verity has it right.
Your likely check list before closing: Phase I as above, ALTA survey $2,500 to $6,000, property condition assessment $2,000 to $3,500, attorney review of the lease and title commitment $3,000 to $8,000, lender appraisal $3,500 to $7,000, and loan origination fees often around one percent of the loan. Title premium and transfer taxes vary by state, and a handful of states don't publish sale prices at all, which affects how much comparable data you'll get. Add it up and $25,000 to $45,000 of transaction cost on a $1.9M purchase is a normal range.
On cash: lenders commonly want 30 to 40 percent down on single-tenant retail, so figure $570k to $760k of equity plus those costs. Confirm the actual terms in writing with your lender rather than working off a rule of thumb.
One cost people miss. Even under a triple net lease, where the tenant pays taxes and insurance along with maintenance, you should carry your own liability coverage sitting behind the tenant's policy, and usually rent loss coverage too. Read the lease's insurance article and get the tenant's certificate of insurance before you close, naming you as additional insured. That's a few thousand a year and it isn't optional in most lenders' eyes.