Thanks to everyone for their replies. Agreed that we thought a permanent move would not be an option. Thanks for the info regarding the medical clearance, the immigration website is not that clear on who needs medicals etc . I don't know if anybody has asked this before , but let's say he is refused the 12 months on the 600 visa would this then go against him if he applied for the three month tourist visa?? If it's safer just to apply for that then that may be the easier course of action. Regards to benefits in the UK we believe it's 3 months out of the country and then you have to go through the process again.