Looking for a portfolio valuation/CMA

[Linda B.]

We need to get a valuation of our 6 SFH portfolio in Port Charlotte, Florida, due to some changes in our investor group. Our realtor provided us with a CMA based estimate and we would like to get a second estimate/CMA to be get a little bit more certainty.

How should I go about that? Can I buy something like that (contact an agent and offer to pay)? Since we already have an agent to do all of our selling and buying, I could see how there isn't much of an incentive for anyone to do this other than a direct payment... 

We've also thought about hiring an assessor, but I'd much rather have two people's opinion than just one and at $300/house a double assessment is getting a bit too pricey.