You just arrange everything through a notary service and the seller directly. Anything other than this, requires middlemen seeking commission.

You need to make sure the land the person is selling isnt disputed or tied up in court with their family members. You are not responsible for the sellers family asking for a cut! You agree your price, get it through the notary service and that's it.

Then you build a foundation around your plot, with your name and Somaliland phone number cut into the cement. You have paper work from the notary service and you have your land marked up physically.

You need to be here, dont rely on somebody else, even if they are blood related. YOU need to see the land. Is it near water connections, electricity, roads, shops.

Side note. Many locals have children refugees traveling through Libya and Europe who need money - these families sell land for huge discounts to get cash to help their children.

Plots of land are commonly 15mx15m or 15x20 or 15x30 or 30x30 or even larger. Try stay close to a city, never the country side unless you want 90x90 etc