Purchasing First Commercial Property - Due Diligence Inspections?

[Derek Caffe]

I'm getting ready to purchase my first commercial property with seller financing. It's a commercial garage around 7K sq. ft. which was built in the late 1960's and will be used as a location for my car wash business. It also has a separate retail location attached to it, that we're looking to lease out. 

As we go through due diligence what types of inspections should I look to have done? I currently have two duplexes in my portfolio so I'm aware of the inspections in that situation, but not sure what additional inspections I should have done. Or are there other things I should look out for? 

Thanks in advance for useful feedback.