Just like a bridge builder starts by carefully placing the first few planks, you’re setting the foundation for your investment journey.Fixing and Flipping: As the bridge extends, you gain confidence and resources.

Adding it to land on a permanent foundation does preserve the value however.  

You shouldn't take them on until you have a solid foundation in selcted market.But I think Columbus is one of the best markets for BRRRRs.

A a basic starting out foundation what is a good percentage of ARV that ii should be looking to offer on properties in the Phoenix (Valley) area.

The local building department would have nothing to do with the prefab certification process since they are focused primarily on site-built foundations and construction.  

Iḿ navigating away from that class but the foundation I built on it has put me in a great light.

Schwab offers almost exactly the same products and I like them both. 

I have been digging through the guidance and am wondering if anyone has ever taken advantage of the following clause regarding 203k improvement types from the HUD SFH Handbook 4000.1, pg 374:- "reconstructing a Structure that has been or will be demolished, provided the complete existing foundation system is not affected and will still be used;"- "repairing, reconstructing or elevating an existing foundation where the Structure will not be demolished;"Guidance link: https://www.hud.gov/sites/dfiles/OCHCO/documents/4000.1hsgh.pdfHas anyone ever built a new home on top of an existing foundation using a 203k loan?

That's a solid foundation for success.  

You don't need to know everything to get started; you just need a foundation to build on and the rest will come through experience and then refining your education.You can build a basic understanding of investing in 3-6 months.