I am a union carpenter and have small construction side business. 

Additionally, If anyone would be willing to have a conversation about what they look for in CPA's and what they learned financially starting in the rental investing business I would greatly appreciate it! 

Property loan or business loan, or both?

When should I form this partnship and open a business bank account to pool capital?

You could just hire him to build; the PM piece shouldn't be tied to the JV - they get the business if they do a good job and it should be equitable fee's for the area. 

This also translate into being a real estate investor, into business, studies; you name it.If I'm steady for 2 weeks or 3 months sourcing and negotiating leads, how do I expect the results I want?

Like any service based business, you're going to encounter a variety of types of fee structures.

I have a 2-acre lot on a busy freeway (85k cpd) with convenient on/off access.

The LLCs need to be substantially run as their own business.

My experience has been that summers are very busy but it falls off the rest of the year.