Like the other answers point out, the main benefit would be diversity. Diversity of risk, ideas, networks, personalities, and so on. Especially at the seed stage, this diversity of talents could spark growth. As for the investors, their individual investments will be less risky because they will be sharing the risk among each other.
Regardless of how many investors you plan on bringing in, you should hire an attorney to help you with structuring the transaction and all accompanying paperwork.
At LawTrades, our attorneys have experience in all rounds of fundraising and have helped many companies secure capital. Visit ourto see how our attorneys can help you secure fundraising for your company. Good luck!