I THINK you are looking to establish market pricing for homes you are trying to buy. A CMA is a COMPARATIVE MARKET ANALYSIS. It is what we REALTORS use to determine a current market trend. What we do is look at recent transactions with similiar characteristics as the house in question. We look at a reasonable about of time,NOW I would say 6-9 months is reasonable, possibly a year. A year and a half ago..I was using 3 months. A REALTOR should be able to do this for you. Are you working with one? If not, go find a good one! The should be able to show you what is actually selling and for how much, then compare it to what is actually on the market for sale. Your agent can also see the percentage of the asking price that the sellers are actually getting. I can't understand "prices going up?" A home on the market since June is not horrible in todays market, there is alot of inventory and buyers are taking their time. Houses ARE SELLING, just at a slower pace. Sellers however, unless they are in trouble, are not giving away their properties. I have had "low ball" offers on some of my listings and the sellers just got offened and refused to even reply.
If you need a referral to a good BUYERS AGENT, I am part of a vast network of Certified, trained specialists. I would be happy to refer you to an agent, or even two to talk to and help you. There is NO COST OR OBLIGATION involved. just some help in the process. Let me know.