She owes him (us) 30k as she bought out his half of a house that they joint owned. However she didn't have the 30k so MIL said she'd dive us the money in installments over a 10 year period.
We could really do with this money for an extension we want doing, without it we probably can't afford the extension. They earn a lot more than we do and are about to have an extension built on their house costing well in excess of 30k.
I think she should pay us the money she owes us first and its really beginning to wind me up.