Additionally, the price point is still cheap enough to find the 1% rule and positive cash flow and there's amazing appreciation potential.

Structural engineer is definitely first step as Mason mentioned.It totally depends on liquidity, risk tolerance and time.

Purchase price: $44,000 Cash invested: $75,000 This was a huge undertaking, but the risk reward ratio worked out great.

So it's not really "extra coverage" for a landlord, but rather a setup that can potentially create problems and less coverage.

As for holding properties under an LLC, there are definitely pros and cons—it can offer liability protection and tax benefits, but it also comes with additional costs and paperwork, so it really depends on your goals and risk tolerance. 

It helps estimate ARV, rehab costs, and potential returns and offers funding options.

You will want to evaluate risk but don't let it paralyze your decision making.

The intent of allowing some sophisticated investors was to allow people who fully understood the risks of what they are getting into.  

@Nate WilliamsWith one income, two kids, and limited cash flow, minimizing risk is key.

This is not worth the effort and risk of owning a duplex.