If the walls are bowing, they might need to add the retention system to pull the wall back in place.It really depends on the work needed.

Look for any major settling or bowing of the foundation.

There are some minor cracks but there are no major cracks and the walls are not bowing in at all.

@Chauncy Gray There is no compounding interest in a mortgage.

@Nathan HuiSimplest way to explain IRR is it is the interest rate your money is earning compounded.

A great book you can read to help you in general when it comes to taking action is "The Slight Edge" - a lot of what we do isn't necessarily all that exciting, but doing the right things over time will compound to produce amazing results...... good luck and don't hesitate to reach out!

Even when the agency has stayed engaged (and they often just get the tenant onto Section 8, and bow out), it's still a disaster. 

The compounding thing hasn't really played out for my portfolio and I invested in index funds.

Even if you subtract for RE commission, closing costs and discount the property for a fast sale, you should clear around $50-55k.3 - It would take you around 17 years of perfect tenants to reach $51 k in cash flow.4 - If you invest the $51k in flips, make only 10% per flip, and do two a year, and don't reinvest your profits...just keep reinvesting the seed money ($51k), you could profit over $5k/year...double what you would be getting in CF if you left it as a rental.5 - Now, if you reinvested your profit back into the flips, you would be compounding you profits.6 - 10 years of compounded profits, at 10%/flip...2/yr = over$280k in profit7 - After your accumulated profit reaches the point when added to the original seed money equals enough  to when flipped, you can use just the profit to buy rentals.8 - keep flipping the enlarged seed money.  

When I started, I committed myself to plowing back 100% of my side hustle net earnings into new investments for ten years to allow compounding.