Looking for commercial space? To set yourself up for success at the negotiating table, follow these tips: 1. Prioritize  It's unlikely that you'll get everything that you want from a negotiation, so it's important to know what's most important going in. Determine which demands are deal-breakers, highly desired and would-be-nice-to-have in order to help you stay focused. 2. Knowledge is Key Having in-depth knowledge of current market conditions is essential to a successful negotiation. When you can back up your requests with data to show that what you're asking for is “market”, you're more likely to win the landlord over.…