considering they're managing every aspect of it... think about it... your mowing guy probably charges you $40 a mow every week or $160 for the month (for 4 hours worth of work - one task) - heck, you probably spend $120/mo on your cell phone bill and what does that for you that you don't have to do yourself? 

Weighing in on both the "new construction" aspect of it, and the location in proximity to both residential and retail, how could I try and find out the answer to what will be the best use of the land?

As long as the rent control stays away, that aspect of the market will do well. 

Between the forums, podcasts and books alone, you can find info, help and support on any aspect of real estate investing; for much less than a paid program!

Take into account utilities and other aspects of your rental offering too when looking at comps in your area.2.

Its good you have those aspect at the forefront. 

Solo enables you to learn all aspects and keep more of your earnings, but it will also require you to be 100% responsible for every aspect and probably see slower growth.It's a pretty wide-open question and difficult to answer without knowing you, your skill set, your resources, and your goals.

This is one of the most important aspects for any new investor that I share with them -- if you don't have a reserve amount baked into your purchase ($5k to $10k depending on age) you will get hammered the first few months.

You save money by having experience and knowledge in the technical aspect of construction.

Sounds like you have touched many aspects of real estate and getting into building your portfolio may be a smooth ride based on your background and knowledge.