All businesses need a business license, though it can be the same as a Business tax Registration - however, you need a business name certificate and you can form an llc to Register Your Business instead of getting a dba business trade name certificate. Your corporation name is the same as the dba business name. This is a general LLC Registration that allows you, as the Business owner, the freedom of operating a registered corporate business.
Oregon For private corporations it shall contain one or more of the words "corporation", "incorporated", "company" or "limited" or an abbreviation of one or more of those words; shall not contain the word "cooperative." For non-profit corporations there is no specific requirement except the name cannot imply a purpose not dictated in its articles of incorporation and cannot contain the word "cooperative" or the phrase "limited partnership." Oregon Revised Statutes 60.094 for Private Corporations; ORS 65.094 for Non-Profit corporations 
In the corporations of real estate law, the ownership or membership may be vested either in the real property or in a legal or natural person, depending on the corporation type. In many cases, the membership or ownership of such corporation is obligatory for a person or property that fulfils the legal requirements for membership or wishes to engage in certain activities.
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