just sold homestead: buy new home first or investment prop first?

[Adam L.]

So I'm about to close on sale of my primary residence (due to a job transfer, corporate relocation) and about to be debt free w/ an extra $400k in my account. It seems to me that this would be a great time to qualify and invest in a large multi-unit property. Any thoughts or advice on doing this first before buying a new homestead or should I be doing this the other way around?