Investing in an apartment complex where rentals are shared equally

Q: Please advise if the following form of investment is permissible.

We purchase a two bedroom apartment in a complex which belongs exclusively to us. Nine other people also purchase two bedroom apartments in the complex. All ten of us then enter into a partnership and agreement (with an agent handling the entire portfolio) that we will all hand over our apartments to the agent for rental. However, the proceeds at the end of the month will be shared equally in the partnership among all ten of us, irrespective of whose apartment was leased out more in that period.

Will such a partnership agreement be permissible and valid?

Being grateful in one's condition

Q: I feel like I'm always behind, like everything is happening in my life very late.

I became father after 5 years of marriage. When I get opportunity outside India for 2 years then my wife was pregnant so I decided not to go. Then again when it came we planned for second baby as wife needs treatment so I declined it. When I thought I would ask or try opportunity outside India, wife got pregnant but miscarriage happened.

I am frustrated with my job and whenever I get opportunity outside India I had some personal issues. I don't know if I did correct by putting family issues on top and leaving jobs out of India. I feel frustrated now in my current job and don't know what to do as I had opportunities but had to decline.

Please guide me on how to proceed. Seeing all my colleague they moved out in 2021-2022 but I'm still stuck here.

Killing a spider on one's carpet

Q: Spiders don’t have blood in their circulatory system. They have something else called haemolymph. Is this impure because a few weeks ago I squashed a spider on my carpet in my bedroom, so does that mean this carpet is impure? I’ve also walked all over this carpet with wet feet after wudu sometimes.

Earning from delivering food with Uber Eats etc.

Q:

1. Is earning from food delivery (Uber Eats, deliveroo, etc.) halaal, when most of the food delivered is not halaal?

2. What's the ruling on haraam earning in the past which a person didn't have knowledge at the time of earning but when he got to know its haraam he stopped that source of earning? Is the haraam earning in the past permissible to keep, even when he didn't have knowledge of it as haraam?