Thanks. the new rules come into force in respect of applications made after the 9th of July. The wording of the rules is not crystal clear but you will definitely have to be able to meet the financial requirement if the rules remain unchanged. So you will need an income of 18,600 between you or saving of 2.5 times any shortfall. So far as her mother is concerned you will need to show that she is wholly dependent on her daughter and can be maintained her without recourse to public funds.

Your fiancee will also need to pass the language test and meet the other requirements .

I recommend you wait a little time to see how the new rules are implemented in practice and also if they are challenged .

Please let me know if I can clarify anything

The rules were put beofere parliement in June and come into effect on the 9th July

It is correct that if you are in receipt of disability allowance then you do not have to meet the income requirement this applies if you are receiveing any of the following:

(i) disability living allowance;

(ii) severe disablement allowance;

(iii) industrial injury disablement benefit;

(iv) attendance allowance; or

(v) carer's allowance;

However your fiancee must provide specified evidence that you are able to

maintain and accommodate yourself, the applicant and any dependants

adequately in the UK without recourse to public funds. This would mean additonal public funds ( i.e. as a result fo your wife and or her mother being here) not any disability allowance you receive.