While not the largest state in the Union, Maryland makes a significant effort to protect its consumers. Numerous state licenses aim to shield residents from unscrupulous or irregular business practices. Accordingly, entrepreneurs will find that in many cases, they need to obtain the state's blessing in order to operate their businesses.
In Maryland, taking your client or partners out for a business meal is a common occurrence. If the establishment is licensed properly then you are probably safe from getting them food poisoning.