Rain complicates the concrete pour, requiring a tarp over the foundation. Slab work is prepared with specific materials for drainage, but the resulting slab quality is poor, prompting an epoxy application. The contractor does not meet expectations, emphasizing the need for a signed contract. Key lessons include the importance of vetting contractors. The project then moves to framing, with plans for self-framing the first floor and hiring professionals for the second floor and roofing.