I am not financially savvy nor is my aunt.
Due to funny family ages I have an aunt who is only year older than me. Not really relevant..
I have inherited a small flat, which needs new bathroom and kitchen and general over haul. Ie new plaster etc. However it's got new heating boiler, very warm, good windows 
It's too much for me to do up, and it's far to far away, that's not an option at all for.
.me.
My aunt has very tight finances and is desperate for some where to live. She has thought about buying my flat outright which would leave her with no budget to do up the flat.. She would have to get loan off her df or he pays out right for bits and pieces. But she would own flat (long lease).
Or.. I have offered if she pays for the bathroom to be done, she lives there rent free for cost of bathroom plus extra months as a thank you... And so on. Meaning she keeps bulk of capital, to invest... She gets my flat to live in...
And we get something in place legally to say... For every x she invests.. She gets x amount of months rent free. I also get something to protect me.
She gets sanctuary, plus her capital.. I get my flat looked after, council tax and bills paid and slowly done up.. By her but also me.
Looking at this as a ten year project?
Any spokes I'm missing?