Mrs. Rhonda Lee is 65 years old and has net income of $53,500. Of this total, $30,600 was from a life annuity that she purchased with funds in her RRSP. Her spouse is 68 years old and has no net income as he is ineligible for OAS, and is attending university on a full time basis. His tuition fees for the year were $3,450 and he was in attendance for 3 months of 2021. Determine Mrs. Lee's maximum tax credits for 2021. Ignore the possibility of splitting her pension income with her spouse.