I don't know the situation that occurred in the OP but if you can alleviate at least one of the above and one of these parties knows what they are doing you will be ok.

Your freezing problem maybe alleviated a little with Pex as it is less prone to split when it freezes but you need to insulate the area prone to freezing.

She's the creative one, and I'm just the muscle. ;-) How did you find this deal and how did you negotiate it?

I would really like to alleviate this burden for this family, hold their hand through the process and solidify my first wholesale deal.

I think there's pros and cons to both, but to be clear in other scenario I want to lead or be actively involved in finding and managing the deal so I can begin to build up that muscle.

I noticed they paid $385K for it in 2012, estimated their mortgage payment, and made an offer that would put money in the pocket plus alleviate #10-12K of mortgage payments during THEIR slow season.

There are also numerous transportation construction projects planned and under construction linking Nashville to Clarksville to alleviate traffic as Clarksville is one of the fastest growing cities in the country.

Learn healthy ways to alleviate stress. 

For a young family with more energy and muscle than money, it's a good deal.

If they are still there the sheriff schedules the moveout and you have to bring some muscle on that day.