I'm paying for the support feature, but yes.

While paying down the mortgage sooner has its merits, it's crucial to weigh this against alternative investment opportunities.Regarding upgrading to a property with better cash flow/appreciation potential, it's challenging to surpass the cash flow of a quadruplex unless venturing into commercial assets.

My house is in decent shape, but I don't know what the lifespan of a typical aluminum roof, AC, and other common features for a house in Florida would be.

I work with several nationwide wholesale lenders that offer these loan programs but as the previous poster pointed out, they come with different features and restrictions. 

Conducting due diligence on a property before making a purchase is crucial to ensure you're making an informed decision.

Since I'm building new, I decided to go for a LEED certification since I'm already half way there since I'm building with Solar and passive home features.

Agents, lenders, contractors, property managers, are all crucial to your success. 

However, if you're aiming to scale your portfolio or dive into your first deal, it's crucial to understand the business fundamentals and cultivate the necessary relationships.

What skills have proven to be most crucial in this role?

It's crucial to do your due diligence before investing in any property.If anyone interested in a 50/50 partnership let me know.