Call a local environmental company and tell them you have xx sq ft of possible asbestos tile, they should be able to provide a rough cost for removal/abatement.

These things could become an environmental liability, they could require expensive upgrades/repairs, etc.If you still feel you want to pursue this, then develop a good relationship with the seller. 

If that doesn't work, I have to change coil for 1600.00With a system that old, you'll want to replace it and reduce your repair / recharge costs.Older refrigerants are VERY expensive if you can get them at all and require special training and licensing to use due to environmental requirements. 

Be ready for environmental / fire inquiries such as whether fuels and lubricants will be stored on the property, disposal of such things, fire suppression systems, hazardous substance containment, welding torches and other flammable substances, etc.

(this place also had huge unpaid environmental violations) Projected cost was well over a Million. 

The cost to build and environmental regulations are a barrier to build housing.  

One thing that bank recommended to me when I bought commercial property with seller financing was to have a phase one environmental study done because most banks would require when I needed a refi and that way I would know before buying if there were going to be any issues.I’d be happy to chat further if you want, just shoot me a message.

Typically your lender will schedule a series of inspections, (physical, environmental, etc) they'll have a few that they have worked with in the past.

I'm planing to turn the front unit into a restaurant for rent since the property is surrounding by residential and businesses but I'm wondering about environmental issue, in this case who can I talk to to make sure I can build a restaurant on this property before I made the purchase?

There are some environmental companies in town that should be able to easily remove.