I have a question regarding how to implement extra monthly charges for the use of a parking spot/garage, or storage or other additional items in Los Angeles.

I don't currently have any business entity/LLC, so that would probably eliminate the option of implementing a consulting contract and charging a fee for services. 

I have an impression that labor in fortworth is not that expensive and general pricing over the google search came out way below the pricing my property manager charged me. e.g.

What do you all charge?

When the problem comes, they just tried to drop all burdens, and suddenly it turns out they are in the middle, only charge referral fee. 

@Lee Ripma, Ideally i will be using private money, I have a few investors that I know that wont charge me points up front and just the interest over that 18 month period, and I would do repairs out of pocket.

As long as it's single family, you should be able to use a conventional lender.

These properties needed a good amount of work and would not qualify for conventional financing.  

We are preapproved with a conventional loan and 25% down.

My plan was to refi to a conventional 30 year loan in order to free up the FHA to use on a 2-4 unit property to owner occupy.