welcome on the forum kenny, you can ask your mother to write addressed to british embassy that she has no objection for your fiancee to live in your moms house
keep searching on the forum,about all the information with regards applying fiancee visa and i guess the minimum of savings deposit is 2,500£ but i had friend from the forum also the fiancee didnt show any savings deposit on his account but they grant a visa,just dont risk, as solicitor says work hard so you can show some savings to the ECO
good luck on your application
