At this point, the work (labor + material) is likely tracking at $15 or less per sq ft.  

Beside having a good wifi connection, the most important thing for smart locks is making sure the deadbolt is not hitting the metal strike plate or wood in the door. 

The cost of labor and materials now is insane.The type of work on my custom house is about 400 a foot.

I had some problems with my General Contractor so I ended up buying my own materials on a great discount and have an out of state contractor who is a great family friend that I  will hire to do most of the work for me.

Are those just for labor or also assuming material expense, as well?

All of the BiggerPockets podcasts are great supplemental learning material.

We have a SFH in Pflugerville TX (just north of Austin) and most of the leads we see are 1-2 bedroom folks (ours is listed 3bed at $3200/mo).The leads we get from people that want a SFH never materialize.  

Also spell out as much detail as possible in your scope of work with the contractor, you cannot assume that they are thinking the same thing as you when it comes to finishes and material choices.  

Please advise I (the landlord) should pay for labor and material to cover the area with rocks, or Tenant is responilbe to clean up the area and pay for the labor and material. 2.

They have huge efficiencies of scale building the same floor plan over and over ordering the same packages of materials.