Most software projects in Nigeria do not fail because the code was bad. They fail because nobody agreed what "done" meant, and there was no way to check progress until it was too late to change course.
Here is what we would ask, if we were hiring us.
1. Can I see the repository from day one?
Source code should live in your organisation's account, not the developer's. If a team will not give you repository access from the first commit, ask why. The only honest answer is that they want leverage.
2. What exactly is in scope, in writing?
A quote without a written scope is a guess. Ask for a document that lists the screens, the user roles, and the things explicitly not included. Both of you should be able to point at it later.
3. What happens when I want a change?
Changes are normal. What matters is whether there is a process: a written change request, an impact on price and date, and your approval before work starts. Teams that say "no problem, we'll fit it in" are the ones that miss the date.
4. Will I see working software before the end?
Ask for a demo cadence. Weekly is reasonable. A team that only shows you the finished product is asking you to trust them for three months on nothing.
5. Who owns the accounts?
Domain, hosting, database, email, payment gateway. All of these should be registered to you, with the developer added as a collaborator. This is the single most common way businesses get locked in.
6. What happens after launch?
Get the warranty period in writing. Thirty days of free bug fixes is a fair standard. Also get a maintenance quote, so you know what year two costs before you commit to year one.
7. Are you registered?
A registered business has an address, a registration number, and something to lose. You can verify a Nigerian business name with the Corporate Affairs Commission. It takes two minutes and it filters out a surprising number of people.
None of these questions are hostile. Any good team will have answers ready, because they have been asked before.
Want this kind of thinking on your project?
We scope, price, and build software for Nigerian businesses — and train the engineers who maintain it.