Pitfalls/problems of purchasing detached single family homes?

[Paul NA]

I have typically stayed away from buying single family detached residence for investment, but currently have seen few deals worth taking a shot on.  However, I am worried about the daily maintenance cost of it and would like to understand how others have gotten comfortable.  In particular snow removal, maintaining the property during bad winters, and other pitfalls that come with this type of asset.  Its little easier with condos/townhouses as the complex association primarily maintains everything outside of the respective property.  And maybe some folks are like me in staying away from this, when investing the above asset.