If you want start a company you need a local sponsor (51:49)
(100% percent foreign ownerships are for big companies and projects, there are some minimum investment confirmations or some special permission from ministry for that)

Nothing can guarantee the 51% that you don’t own.
One safest option is find some Qatari investor who is ready to invest 51% so what is legally in his name is actually his.

Most of the good Qatari sponsors go for percentage for sponsorship of companies: but here is some clarification to the above posts, as far as I know, mostly it is not percentage of profit, it is of turnover.
That is the revenue in the bank, ranging from 3 -10 or even 15% depends on your expected sales turnover and relations. If you are doing a cash retailing I am not sure.

There are legal ways to restrict the sponsor’s interference in taking over control of the company once you are well established, consult a good lawyer before making the WLL agreement.

In UAE the parallel contract made between the sponsor and foreign partner regarding the actual investment confirmation and ownership rights may get validity at times. But in Qatar it is illegal, it is as good as cheating the government.

All the best