But you do need qualified subcontractors that are capable and skilled at their particular trade. 

It does not matter whether its real estate, or day trading, flying a plane or anything that continues to require repetitive knowledge.Then people get upset that after a year they have done nothing, because they had no money to do it (but of course many gurus will tell you that you can do it without money because that is probably their biggest revenue generator).

you want to do everything in categories . home deopt may be just lumber and finishes . all of the other trades come with their own materials 

The problem comes in when you have to call inspections for all the trades.

You are just having them spend money in an attempt to trade realized tax deferred liability into tax deferred liability.It depends on what they need/want. 

If this situation harms you, it may be worth selling and trading for something that produces less return but requires less work.

And the tools of the trade are always provided by the contractor, not his client.If your contract does not include some timeline for completion and/or milestones, I'd add it into future ones.

I am however handy, I have a degree in biology and I do have a trade skill set in automotive mechanics, and I am always willing to return the favor for anyone pointing me in the right direction.

That's why you invest, don't trade, in physical assets. 

It depends on if your real property trade or business is being a professional investor.