Ervin and Freda are looking for a home; their combined income total 77000. The couole were able to negotiate a rate of 5.25% for a 5 year fixed term on a 25 year amortization. The taxes are estimated at 1800, and heating cost are 1200; their personal debt consumption is 725 per month. the banks guideline is 40% for TDSR and 32% for GDSR. using the TDSR guideline, determine the maximun mortgage they qualify for.