If a rental unit down the street comes available that is more attractive, there is nothing to keep them from moving. 

The plans are owned by the designer and his/her client.  

Does anyone have experience in raw land development or have recommendations on architecture designers?

Ideally for a rental property, you want to attract quality tenants that are reliable and dependable, that’s a complete topic on its own.

I am a contractor so this house is an attractive deal for me as the circumstances can work. 

I have hired leasing agents, lawn care, cleaning and web/graphics design.

You also, in general, get a different type of tenant for a 6 plex/apartment vs. single family house.A single family house will attract families, multi generational families, boy friend/girl friend with his, hers, and/or theirs kids for the most part.Apartments attract single people, recent divorcees, starting out couples, students. 

Having the GC license, the real estate license, being able to do all the designs in-house, and being able to manage the project directly.

or single family)- close monitoring of initial investment, minimal money down2) BRRRR in Denver area if feasible, considering out of state- Focus right now is getting pre-approved for FHA financed property and close on an attractive deal.

Since then, I've been doing a lot of reading/research and I'm attracted by the opportunities that real estate offers.