Can I sue a CA company for Age discrimination dismissal and for payment of owed Sales Commissions?

Although your NY office may only have 7 employees, if the Corp office in CA is the same corporation you work for in NY, (and not a subsidiary) then you may still be protected by federal age dsicrimination laws.  You should also look at your state, city or county where the office is located to see if have an agency that handles discriimination claims.  These agencies typically require only a few employees to have jurisdiction.  An employment lawyer in your area would know about these agencies. As to commissions, your contract or payment agreement will control your right to commissions.  If there is no such written agreement, then you would be entitled to this by state law if you did all you had to do and closed the sale before the termination.  The agreement, if there is one, would talk about when commissions are earned, and when they are payable.  The date the commission is earned is the key date