15K CAD is good. Show it in each application if it is a joint account. You can also provide their salary slips, ITRs, house loan details if any, FDs that mum or sister have however again separately for respective applications. This is in addition to all documents pertaining to sister and mum's job - employment proof, letter signed from HR or HRMS screenshot of leave approval for travel. Also create a nice statement of purpose letter that describes in brief the purpose of their visit and why they will return to India after the stay.My sister can show 15k as a sponsorship for herself and my mother through one account. We do not have any properties to show. Will this affect our situation? Both of us also don't have any travel history.
What do you guys suggest? Should we wait and apply individually later using some other purpose of visit or graduation ceremony is the only strong purpose to visit? Please suggest. Thank you.
Apply now, you never know, approval may come through quickly.