Lots of book knowledge on real estate, business structure, and asset protection.

Not every agent understands investment real estate and they can lead you far astray.Know your numbers and dive into the forums and info on BP.Meet with a RE attorney to determine structure and get advice on the best place to start with your financial capability.Get a GREAT CPA to ensure your tax liabilities are minimized to the greatest degree.Find an INVESTMENT banker in your area and establish a solid relationship so when you find a deal they are willing to help you out.

Second, I hope to delegate as much as possible, for maximizing the passiveness of my income structures.

Same for most common structure repairs.Also, not knowing the tool, where does it get the costs?

Some of them will have extensive training, some of them will have attractive commission structure.

In the ones where I'm the investor/partner we use a pretty standard structure, cap mgmt llc, partnership llc, pass through on K-1 etc... 

@Vahid MostafaviHave you decided on on how to structure your partnership and how to split profits?

Replacing roofs and plumbing on both structures.

@Jason Velie -- if the LLC you created to purchase the rental is a partnership or corporation and doesn't own anything other than the OZ property you described, its probably not too late to structure it as a QOF. 

Also, check minimum lot size and street frontage as you may need to carve the mobile home park out of the existing lot versus pile onto the existing lot, so if you are trying to preserve the existing structure, you may lose some lots considering setback requirements and access.Your local government may require public water and sewer for a new mobile home park, so be sure to check the requirements and distance to the nearest connections.