Some say that the benefits of this is that it gives you an extra layer of protection, anonymity (if you have the holding LLC in a state like Delaware) and additional ease in transferring money between the LLCs.

My thought is that since I am already wanting to learn the in’s and outs of property management and really involving myself in real life experience, perhaps if I offered to take care of the whole property for him in terms of dealing with the downstairs tenants, scheduling repairs/maintenance, and keeping up the properties landscaping so that the investor can remain more hands off he might be willing to give us a break on the rent so that we can save even just a little bit extra each month.

It may sound nice to pay a 5% management fee but the extra fees can add up to be more than the other company that charges 10% with no add-on fees.

Anyone know where I could get the extra 20k-30K ? 

I will be using the extra equity to add value to the park with more pads and electric hookups.

It’s going to be very hard to find a good contractor who will actually build on time and on budget for any new build now and many don’t want to jump through extra draw hoops such as VA.Not trying to discourage you because anything is possible, but it may serve you well to learn the ropes first on an existing building…

A company might add a "commission" on top of the agreed upon price; plus they tack on extra closing costs that you are not aware of until you see the HUD1 at closing (like a double title policy charge). 

It will continue on without extra fees or penalties without any further contributions besides organic gains and dividends.

You should specify the allocation of depreciation, income, responsibility for extra capital expenses, etc in an operating agreement or JV agreement. 

It wouldn't be fair to charge Tenant A extra to cover losses caused by Tenant B.