Visitor visa for a relative

[thunderera]

Hi,
I'm trying to bring my mother's sister for a short holiday. When i read the gov.uk web site an aunt doesn't fall in to family visa category. But in previous discussion forums it mentions that an aunt or an uncle qualifies under family visitor rule. Can someone confirm if this is not valid now?

Also she is currently unemployed and looks after her older mother as the main care taker. Also she has a house/property in her name and depend on family support. I'm planning to sponsor her for all the expenses for the visit here. Do you think it will be a problem that she is unemployed? Also what sort of documents I should provide to show that she is related to me?

Many thanks in advance.