My wife is visiting me with a visitors visa and am a u.k.citizen can she stay. Advice urgently needed

what do you mean can she stay? what forever?

visitor visa stay is max 6 months and go. or do you mean can she stay with you while she in the UK?
Explain?

Absolutely not. Best to stick with the terms of her visa -visit and stay for a reasonable time only or at least not much longer than what she said on her application except there is a good reason to stay longer e.g. the full 6 month entry period- and return to her home country. Why don't you apply for a settlement visa for her. Her having visited will give more weight to a spouse visa application.

Please, please, please, do not be tempted to let her overstay this visa as there are no allowances for changing from a visitor's visa to any other settlement type visa except in extremely compassionate circumstances which they have been careful not to make public. So no one really knows how to qualify on compassionate grounds.

Please for God sake dont let her overstay her visa by 1 second since u are british why dont u apply for a spouse visa for her so she can stay here permanently for 2yrs and after that apply for her indefinate leave to remain in UK and after another 1yr she can naturalize and apply for her British passport.

All u need to apply for her spousal visa is;

Evidence of relationship with sponsor - e.g. marriage/birth certificate, evidence of communication, photographs

Evidence of sponsor's immigration status in UK and copies of passport

Previous divorce papers for applicant/sponsor (if appropriate)

Evidence of employment and current financial circumstances of applicant and sponsor (as per visitors)

Evidence of accommodation