Briefly... We are in England. My sister died a couple of days ago. After her death, my mum asked me to look at some paperwork and I found out that my mum added my sister and her husband to mum's property title deeds 9 years ago, after my dad died. No mortgage, property worth around £500-600k. I have 2 other siblings. None of us was aware of this until today. None else named on the deeds, just the three of them. I don't know whether my sister and her husband were added as joint tenants or tenants in common, or why they were added. There is a phrase 'The Transfer to the proprietor contains a covenant to observe and perform the covenants referred to in the Charges Register' in the deeds - what does this mean? My mum's will states that her children should all inherit equally.
What are the implications of my sister's death? Does this mean that my brother-in-law now owns half (if joint tenants) or 2/3 (if tenants in common, assuming an equal split, and assuming that my sister left her assets to him in her will) of my mum's house? Why would she do this?