Getting cap rates from market player can be challenging. If they give you a cap rate you never know what's included in the I&O. Half the time I feel like I'm getting their best guesstimate of I&E. Only occasionally will anybody dig in the file to find the actual numbers. Getting equity rates is just as bad. In addition you really have to find out the loan terms for the comp. I've seen several deals lately with "special" financing. In the Boston market there have been so few sales in the last 9 months of most proprty types extraction isn't an option. Unless of course you're extracting the cap rate from where the sun don't shine.