That would have to be an independent decision you’d have to make on your own w/knowledge of their personalities.

@Tom Veit While I know building material costs are through the roof right now I have only seen it be a major influence in my investors decision making when debating on whether or not to develop a new build property.

If I don't have that and they want an update if they were accepted I tell them I have other viewings and to be fair to them am giving them a chance and have not made a decision yet. 

@Wesley Mullen,TL:DR- look at some differing viewpoints and make a decision that is best for and your family.Soap box ensues.I’ll give you what appears to be the sole dissenting view-the money in your 401(k) gets taxed as ordinary income when you withdraw it in retirement.

It may take a few months or a few years, but you'll most likely come to regret your decision.

Unfortunately sounds like you got one that would fall in the 20%.consider the costs/risk/rewards on this and make a decision when you are in the right frame of mind.  

You want an accountant that can help you strategize and who is responsive when you want to know the tax consequences of the decisions you are making throughout the year.Good luck and let me know if I can be of assistance.WARNING!

The seller's reasoning shouldn't factor into the decision.

We decided to use an IRR calculation to make our decision, so that it takes into account potential appreciation and sales price down the road.

If so can the guardian be the sole decision maker on the sale of the property or does every sibling need to be involved?