The age of the client when it comes to mortgage services depends on the capacity of the applicant, as well as whether they are a citizens or a residents. In both cases, the age of the applicant should be above 21 years, while the age of the citizen applicant at the date of the last installment should not exceed 70 years and 65 years for residents.The age of the client when it comes to mortgage services depends on the capacity of the applicant, as well as whether they are a citizens or a residents. In both cases, the age of the applicant should be above 21 years, while the age of the citizen applicant at the date of the last installment should not exceed 70 years and 65 years for residents.