Heirs not distributing the estate of the deceased

Q: A person passed away. He was survived by a wife, 7 sons and a daughter. At the time of his demise, the Marhoom’s estate had cash, Kruger coins, a number of properties and a business in which some of his sons were assisting him.

After the demise, the estate was not distributed. With mutual agreement, all heirs continued with their respective responsibilities that they carried out during the lifetime of the deceased. i.e. running of the business and looking after the property portfolio.

No fixed wages were stipulated for anyone (as was the case during the life of the Marhmoom).

Everyone continued to draw money from the business and properties for their expenses, at their own discretion. It is expected that everyone will be moderate in their spending and that they will consult with any major decision.

Subsequent to the demise, a few properties have been purchased and two sons have started businesses.

Zakaat is currently being paid on the entire estate and not individually. As a precautionary measure it is paid well above the actual due amount.

This arrangement is working out fairly okay, however, at times some heirs have voiced their feeling that they want this partnership to be dissolved and the estate to be divided.

Questions:

1. Is the above partnership arrangement acceptable?

2. Is it fine to continue paying Zakaat as a collective?

3 What advice can you offer on how matters should be taken forward?

Qadha for fasts that were broken due to masturbating

Q:  

1. Prior to 1 year earlier, I did not know that masturbation breaks the fast and I used to do it in the state of fasting. Do I still have to make qada even if I did not know it at that time?

2. If yes, how should I calculate how many fasts I should make qada for? I am not sure how many of my fasts were broken like this. How many qadas should I make if I did not know this for 5-6 years after becoming baligh?

3. Should I make qada for all the fasts for the past 5-6 years or is there a specific number I can keep to make it alright?

4. Am I obligated to keep all the qada fasts together or can I keep them once or twice a week?

Non-Muslims choosing not to accept Islam

Q: Idol worshippers believe just as strong as a Muslim believes and also has prayers answered just as Muslims prayers get answered.

Hope you can help with this question as Allah can easily put and end to idol worship yet he keeps sending souls that get programmed into the faith they are born into and by clear observation the majority stay in that faith as they have strong reasons to do so. If a Hindu came to a Muslim and tells him to become Hindu and worship multiple Gods then the Muslim won't do that and vice versa. And just because the Quran says so is not good enough since anyone can put a book and say worship so and so but most will ignore that person and believe what they have been brought up with.

I'm sure you know what I'm saying and would be grateful if you can explain, but please don't explain with verses from the Quran, I want you to explain independently.