@Jeff Martin I'm glad I'm not the only one who runs the #s 10000 times. like they're going to miraculously change or maybe I'll realize some horrible mistake I made inputting the data. I've been using the rental calculator here on BP in the tools section.
I guess its about knowing your market and just having confidence that your #s are accurate. I tried to be as nosy as I could at the open house, asking the existing tenants as many questions as I could get away with while the listing agent was occupied elsewhere. I wanted to see if I could get a gauge on why the seller was selling, what kind of landlord they had been, the neighborhood, what problems there have been with the property... Answers to my questions led me to believe that the property was a good buy and may be in some demand. Having already run the numbers at full price and at various other prices, I knew that a full price offer would still cash flow adequately so that's what we did.. actually we offered 2k above asking because we really wanted this property.
I had heard in one of the BP podcasts a guest say that he hated when his first offer was accepted with no negotiation because it means he could have probably got it cheaper. I guess I'll never know at this point but the inspection is coming up. We'll see if there's something there to use to negotiate down or if the RE God's were just shining upon me on this one.