At that point, I’ll obviously be getting a much lower return on my equity going forward, but the higher cash flow will essentially be lowering the amount of income that I’d need to withdraw from other investments.

Their safety is your first priority.  

You'd essentially be on-call 24/7, all in order to save $200 per month (i.e. 10% of $2,000). 

Essentially, this is a total gut and rehab.

Due to inflation if you owed $1000/month, 30 years from now that would only be the equivalent of $411 worth of actual purchasing power if you assume a 3% rate of inflation.Finally, paying off a loan faster essentially means your money is earning the rate of interest on the mortgage. 

@Jamar JonesYes, they are essentially the same.

In your consideration, you can then only reject based on if they pose "a demonstrable risk to the personal safety and/or property of others".

Smith signed the document on behalf of himself, which would essentially pierce the corporate veil of their entity.

So all R1 zoned lots (excluding a few criteria such as safety (must have I believe 4' from structure to property line), sewer, and 2 more that I cannot think of) can legally have 3 units (the primary, a JADU, and an ADU). 

In this form a “material defect” means a condition that would have a substantial adverse effect on the value of the residential real property or that would significantly impair the health or safety of future occupants of the residential real property unless the seller reasonably believes that the condition has been corrected.I think you have an uphill battle, unless the information from the foundation contractor shows it was still a problem after the repair, especially since you got a home inspection.Just my opinion.