My dad died in March 2020 - although my parents split up 20 years ago they never got divorced and my dad never changed his will and my mum got everything which I have no issue with. The whole estate consists of his flat which he owned outright and around £20k in savings.
My brother really wanted to be the one to sort out the estate so me and my mum agreed but I think he's found it harder than he thought it would be plus he is a procrastinator so everything has taken forever but it's all sorted now and a few small debts my dad had have now been sorted so it leaves around £17k in the pot. My mum is going to sell the flat (worth around £300k) but has kindly said that me and my brother can split the savings left between us so around £8k each.
Now the estate has been finalised I asked her about the money and she said that my brother is hanging on to it for now in case there is any further costs to do with the flat until its sold and its not on the market yet. These costs will be minimal- ground rent, service charge and a very small electric bill.
I split up from my husband last September but am still living in the same house as him with our 2 children as I can't afford to buy until I sell a rental property I own and the last tenant is only just going (I gave him notice 8 months ago).
I've just had a look at the local area and have seen a 3 bedroom property idea for schools and my work but I could only afford half the rent. With the money from my dad I would be able to get a 6 month lease by which time my flat will be sold (hopefully). AIBU if I ask my mum to release the money she said I could have now?