Since the purchase of the like-kind property is time-constrained (180 days or whatever), it appears the 1031 Buyer is at a disadvantage and Seller to 1031 Buyer can use Seller’s time constraint by not agreeing to any legitimate concession in price should something be discovered during Due Diligence period.

If you don't have them, you put yourself at a competitive disadvantage.

And, if typical loan terms are typically far higher for these slightly bigger buildings, are there other financial advantages to buying, say, a 6-unit vs a 3 or 4 unit that would outweigh the disadvantages? 

There are disadvantages, though.

I think I am at a disadvantage because I am a young female and sellers question if I know what I’m talking about...Anywho, I am determined to stay persistent.

I don't see the disadvantage of a $200k property.

So if I tried to charge any more than that (like also charging last month's rent), I'd be at a big disadvantage when trying to rent my properties. 

What advantages/disadvantages do these locations offer? 

I am pro-license... there are very few disadvantages to having a real estate license. 

We target a tenant pool that remains employed in good times and bad.I think the fear is summarized on the chart below.As always, the disadvantage of real estate is the lack of liquidity.