Your numbers will be impact drastically based on this one factor like @Ann Bellamy points out.

Hopefully remediation costs were factored into your purchase price.

This all are factors in the price.

They're a factor in the purchase and a significant expense on the resale!  

I can support that my headache factor might be reduced with that option.

A local bank I have a relationship with underwrites annual operating expenses for small Multifamily 2-4 unit non owner occupied at 30% of net rents, for example:Gross Rents = $48,000 Subtract 10% Vacancy from Gross Rents = -$4,800 Net Rents = $43,200Subtract 30% OpEx from Net Rents = -$12,960NOI = $30,240What percentage do you factor when underwriting OpEx for small and large multifamily in your market? 

That is the pressure factor. 

Just today I found myself taking pics and sending it to a contractor telling him what needs to be fixed as the job was not good.Finally, the time factor.

Minutes will clue you in on whether these types of issues and discussions are happening in the complex.With that being said, there are still other factors to be considered before buying condos for investment purposes.

., each deal will be different depending on the exit strategy, type of asset, market cycle, repositioning vs. value add, to name a couple factors.