A quote that comes back within a day is a red flag rather than good service. A competent team will come back with questions first: about who owns the data and what happens on failure. A vendor that commits to a figure before understanding the scope is simply pricing a guess, and a guess resurfaces as a change order — on your budget.
Look out for a mismatch difference between livewire and alpine js the people you meet and the developers actually assigned. Request named engineers in the contract, with wording about substitutions. A vendor that talks only about a pool of resources and e-governance software development refuses to name individuals is preserving the right to assign anyone it likes.
Insist on the source repository from the first week. A team that hands over code only at milestones is inviting you to accept a black box. Regular commits and pull requests reveal how many people are really working far better than any status report. The same applies to the build and deployment setup: if nothing runs automatically, promises about quality remain nothing more than words.
Loose wording in the contract around intellectual property is never a formality. The document needs to state plainly that the code, designs and documentation belong to your company on payment. Check also the jurisdiction and the payment schedule: a request for most of the money up front with no milestone tied to it removes any leverage you would otherwise keep.
Finally, look at how they communicate. Ask how much working-time overlap there will be with your working day, which is better laravel or wordpress person handles questions difference between vue and angular within what time. Some genuine overlap generally works; no overlap converts every clarification into a twenty-four hour round trip. Careless writing in the proposal will not improve later.