Valid & Invalid transactions

Selling a property and holding back the property while receiving the rentals until full payment is made

Q: Please advise on the following:

I have a share in a property I'd like to sell privately. The buyer wants a few months to pay.

Can we do the sale as a cash sale rather than credit, and I allow him time to pay, but till he pays the entire amount I hold the ownership of the property and receive the rentals. When the final amount has been paid in full, the property transfers into the buyers ownership and he receives rental.

In essence, for safety reasons and to receive the rental in the interim, will this be permissible, rather than doing a credit transaction where the ownership would transfer immediately and I would have a doubt regarding payment later.

Purchasing a plot for development where the exact location of the plot is not demarcated

Q: Can a plot be purchased in a newly developing area where the exact physical location of the plot cannot be determined? They showed the plot on a map and the roads, other plots adjacent to the said plot, roads and park etc. in proximity to the said plot. They showed us that the area of the said plot and told us that your plot cannot be located now as the demarcation of the plots is not yet done. Is this sale and purchase valid?

Dropshipping

Q: Is drop shipping halaal? I intend to sell clothes online via a supplier. The stock resides with the supplier. I will link my online clothing store with the supplier. The client chooses from my brochure and makes payment, then the item will be shipped via courier to the client. Is this permissible?

Working for FLP

Q: I want to know if it is halaal to work in a network marketing company especially in FLP company America.

This is a brief overview of how the company works:

After free registration under sponsorship of a person who I join through his ID, the company is giving us their products (aloevera contained-health products) with some discount to sell them to the general public.

We have to then pass different levels in order to achieve different status in the company

1) We have to buy at least 5000 products and sell them. To achieve the level in which we can add/join some other person under ourselves (under our sponsorship) to do the same business. After achieving this, we become "business owner".

2) We have to sell/recommend the product of cost 33000 to acheive 2cc (cc=case credit), which is common currency of this company all over the world). In this case, we become "assistant supervisor".

Likewise, the more CCs we achieve, the different levels we reach and the higher salaries we earn.

3) Here we receive bonus/passive income from our downlines (the people who joined me or the person who joined them, and carrying on further down the chain) as well. We receive some special percentage of amount from their (downlines) work as well. This earning is called  "bonus or passive income" here.

However, the bonus amount/passive income is subject to a condition that we must fulfil, that we have to generate a special number of CCs (case credits) by ourselves actively, then only we can receive our passive income otherwise we will be denied any passive/bonus income.

Please advise on the permissibility of above.

Supplier putting a condition that a sale cannot be cancelled once an item is ordered

Q: My supplier sends me pictures and specifications of items that he is selling via WhatsApp. Whatever items I want, I order via WhatsApp. Is it permissible for my supplier to put a condition that once I order an item, the order cannot be cancelled, or is stipulating such a condition zulm (oppression and extortion)?

Early settlement discount

Q: We have an arrangement with our supplier to pay his account, 2.5% discount on the 30th following the month of our purchases. Is this shariah compliant? If not, please explain in detail how we can rectify this arrangement so that we still enjoy the benefit of the discount.