Practising equality when taking another wife

Q: A man is married for 15 odd years (with kids) and thereafter decides to take on a second wife. He has provided for his first wife a house of x value however wants to provide for his future second wife a smaller accommodation of lesser value. He says it is safer for her to stay in. The future second wife is not materialistic but his decision without her consent has already left her feeling inferior and she is now unsure about her future with this man. What is the ruling on this and what do you advise?

Making dua for children

Q: We have been trying to conceive for four years. We have had one miscarriage in between. Doctor's are saying my sperm count and motility (speed) is low. I have now left it in Allah's hands. I was just wondering, as a man, what can I do? Is there any Ta'weez as such for males? Is there any Naseehah or Islamic prescription that Hadhrat can give me? Am I allowed to practise the Aa'maal that are normally given to ladies such as fasting, tying Ta'weez around my belly etc?

Following one's nafs

Q: Please can you advise if it is permissible for one to claim to be half Shaafi'ee and half Hanafi i.e. incorporate Shaafi'ee rulings that they have taken a liking to into their daily lives. Hence they declare themselves part Shaafi'ee and part Hanafi. If this is not permissible, please advise the harms and dangers this poses to ones Imaan.

Making the employee pay taxes

Q: An employee works for a company and his stipulation is not set at the beginning. He is paid an amount less than the market rate for such a job. Secondly, the employer places the entire burden of taxes on the employee, whereas the employer is required by law to pay 7.65%. The employee works because he cannot find another job currently, is this Zulm on the part of the employer?

Is it permissible for him to take on clients on the side and complete work in the office and keep the compensation for that? What if he pays for his own supplies such as papers, pens, etc?