Family member's Visitor Visa before wife's dependent visa

[oneITguy]

I am on Tier 1 Gen in UK. I am planning to call my mother and sister here for 4-6 week before my wife's Visa application.

My wife can't come first Because My wife can only apply after a month due to tier 1 meintenence requirement constraint.

Will it create any problems to my wife to get the visa since I would have already sponcered 2 family members(mom + sis)?

Can I get my friend or reletive here in UK to apply my sister's Visitor Visa to avoid whole burden on me?

Your valueable responses would be highly appriciated guys.

Please help me out.

Thank you in advance.

[oneITguy]

I am on Tier 1 Gen in UK. I am planning to call my mother and sister here for 4-6 week before my wife's Visa application.

My wife can't come first Because My wife can only apply after a month due to tier 1 meintenence requirement constraint.

Will it create any problems to my wife to get the visa since I would have already sponcered 2 family members(mom + sis)?

Can I get my friend or reletive here in UK to apply my sister's Visitor Visa to avoid whole burden on me?

Your valueable responses would be highly appriciated guys.

Please help me out.

Thank you in advance.

Requesting experts to please advice me on this.

I would be really thankful to you..

please