Sorry, this is long.
DH and I rent from my MIL. She bought the house for DH before we met and there was always the understanding that when he had a steady income that would enable him to take on a mortgage she would let him buy the house at the same price she paid for it.
This was over 10 years ago, DH and I live here with our DCs and we're now in a position where we can buy the house, but now the plan seems to have changed. MIL is very cagey when we try and talk to her about buying the house. In the past she's said she'll 'be fair' when it comes to selling the house, but she's also said that for various reasons it would be impossible to sell the house to us for anything less than full market value. We've been told that the rent barely covers the mortgage and insurance, but we've also been told that she relies on our rent as her main source of income.
The last discussion we had she was pushing towards us not buying the house but instead having our names added to the mortgage and taking over the mortgage payments. I asked her how much the mortgage was and she claimed not to remember.
She's not been the best landlord in the world, she's made no effort to update the house at all. We can't have the boiler serviced because it's so old there are no parts available for it - but she can't replace the boiler as she has no money. The house is in massive need of updating, the kitchen is at least 30 years old, ditto the bathroom. The windows we're fighting a losing battle with, we sand them down and paint them every other year but they're deteriorating more and more.
For a house we're merely renting, it's not suitable for us any more. We're expecting another DC soon and we're a bit squished as it is. If we owned the house DH and I would hang on here a bit longer to improve the house and hopefully get it to a point where we can sell it on at market value and use the equity for a bigger home. Alternatively we could extend and/or add a loft conversion. MIL is aware that this is what we want to do and has said that this would be fine, but that was when we weren't in a position where we could actually buy the house.
If she won't sell us this house than the only real alternative is for us to move out. I won't hang on renting a house that is too small for us, especially with all the issues we're having with it. Us moving out would either force MIL to sell, or to invest a few thousand in to the property before she could get new tenants in. Given the amount of work the house needs, I can't imagine it would sell very quickly unless she sold it very cheaply.
So, after this huge wall of text. AIBU to be suspicious of MIL and WIBU to expect her to honour the promise she made to DH but if that really is impossible for her, to give us a mahoosive discount to take in to account the years of rental we've been paying, plus the huge amount of money we'll need to invest in the house?