ILR for widowed mother while she is visiting us in uk

[sackcy]

Is it possible for my widowed mother who is almost 65 now (as according to the ho law, we can apply for her ilr) to apply for ILR while staying in UK? She is visiting us on her visit visa (3rd time visited us) and one of my solicitor friend informed me it would be possible for her to apply now while she is here on the visit visa.
Our details: Me as British Citizen and wife as spousal visa.

Also if she is ok/eligible to apply now, or maybe from home land, does she also need to pass the LIFE IN THE UK TEST? And its it from home land, where would this test be taken? Do we need to contact the British Embassy for the test details?

Will wait for your responses/replies.

Regards

[Greenie]

See Older Dependent relatives