The phrase "preferable rates" refers to a situation where a certain price or rate is more desirable or better than other options available. It means that this particular rate is favored or preferred over the others. Full definition
It is preferable to commit to a down payment of greater than 20 % of the property value in order to achieve preferable rates. (loanbox.ca)
However it is better to settle for a down payment that is more than 20 % of the property's actual value since doing so will help you achieve preferable rates. (syndicatemortgages.com)
Disability insurance companies give preferable rates based on your level of education, so CPAs can get more favorable rates than other accountants. (policygenius.com)