The unobstructed water views for both front STR units can be challenging to determine additional value compared to other 3-unit properties without views.

In addition, there's a church, Bethel Church, and they have a ministry school, Bethel School of Supernatural MInistry, which is expanding to have 3000 students.

They will have additional costs for mailing & online campaigns to get leads.

Additionally, your brother would inherit your cost basis in the property, which could result in significant capital gains tax if he sells the property later.

In addition, these markets are seeing both home values and rents appreciate.Cash flow from a property will depend on your down payment.

I heard that less than 20% down causes additional insurance fee? 

Purchasing the LLC gives you ownership of the property, but it also opens you up to additional legal exposure since the entity has been active, and there is no way to really know for sure what else they used the LLC for.

Is the portal that the landlord and tenants use an additional charge?

Feedback has not suggested property needs additional repairs/work, only that they are looking in a different area.

In addition, when you have leverage you have the other benefits which @Ali Boone mention.