i owner financed my home with g-parent he has passed away we agreed for me to pay remaining balance to my mother he owned other properties point is everthing is going threw probate court i have been late on some payments the agrement was if 60 days late to pay the going interest rate i was 36 days late i payed both my payments the lawyer that drawed the contract and did his will sends me 3 letters sying i am in default i have ten days to payremaing balance what should i do?