A buyer with a pre-approval from a CREDIBLE mortgage lender, qualifying credit report, and has funds for down payment or closing costs. A mortgage approval contingent on the appraisal is necessary for the lender to provide.
A good qualified vs just qualified is also having 20% down. It seems like the appraisers are a little more flexible when they have 20% down. Although I just had a buyer who did have 20% down and was qualified by 2 credible mortgage reps and still could not get the loan because of limited work history.
Being ready, willing and able to buy. Most import to have met with a local and trusted loan officer who has pre-qualified them. What makes them good is they then choose a good buyer broker to guide them through each step of the buying process.