It can be easier to sell SFR down the road and they tend to appreciate faster.On the flip side, however, finding a good duplex and a good dependable tenant can significantly offset ownership costs.

SFH tend to be in stable, "nice" areas.

It is a long process in most states, and at the beginning owners tend to be in denial at not ready to do anything.

Smaller banks tend to go easy and they have a way around (that is, if the bank holds your note vs sending Fannie/Freddie), and the bank will not call.

I find that condos tend to be very risky investments, due to HOA fees can change whenever and to whatever they want to charge.

Does the daughter have a lengthy/consistent job history that would tend to support her claim that she could "get a job when she moves in to town"? 

Another thing that I tend to look at is the date that they registered.

A great tenant in a really poor area is harder to find - and keeping occupancy levels up tends to be more difficult.

Don't want to pigeonhole myself if I just mention on place as tends to be the case.

The best you might find is a tax attorney, but those folks tend to really specialize in defending their clients before the IRS, preparing tax returns with complicated issues or issues that they intend to then take to tax court, etc.