Consider the extra expense a capital contribution to the equity provided these are in good locations. 

Most people who buy 2+1 and think they can use the third and get busted on that, end up renting the bonus unit to the top or bottom unit as extra space, but that is a loss on what would be unit rent by more than half.

It's easy to obtain, costs very little, and doesn't require extra, on-going effort to maintain.

This way the investor has a quality property where all the payment is going to the mortgage so equity builds up fast and they can take the re-advanced funds and WAIT for the right opportunity for extra yield plays. 

If they can't/won't pay the increase, reward them with an extra 30 days to move.

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

Townhomes have extra holding costs in HOA and could limit your renting ability.

After some research, I'm thinking it would be a good opportunity to proceed with the offer and to set aside the "free" money for use for repairs/renovations and holding costs to have some extra cushion.There seems to be much debate on the use of credit cards in real estate investing, but considering my circumstances .. 1.  

You could hear breaking glass and things falling out of the ceiling ( HVAC stuff ).

On a fixed mortgage, i could pay extra payments (or a one time lump sum payment) and apply it towards principal.