•Which unit size would rent faster and have higher demand in this area?

Given the size and scope of things, and "community" one could readily argue addition of organizer and head of a Criminal Syndicate. 

You'll most likely find your staffing costs to be in the neighborhood of $1,200 to $1,900 per unit per year, depending on property size, class, and market. 

Even though it doesnt cashflow well asap, the potential would be its proximity to Las Olas, downtown and the size of the lot, different development options. 

The house is also furnished with a solid wood no spring couch, and a solid wood round dining table, and a king sized bedroom set in the master.

Most important is lot size, and basement  ceiling height.  

I ended up buying a SFH home on a nice-sized lot and I am building an ADU on the property.

Only rental cabins catch on fire and not primary residences.In all honesty, though, I would agree that something that size should be treated more as a commercial property any way and the sprinkler system makes sense to me.

I’m looking at doing a master lease deal in Alberta on a mid sized multifamily so I would appreciate any onsite you are willing to offer.  

My numbers on that property are good now, although it took a year for me to sort out exactly what we wanted to do with it. 700k duplex, single story, about 2,500 sq ft total building size. 1500 sq ft for the 3 bed/2 bath with pool and 1,000 sq ft 2/1 small private yard on the other.