With that comes knowledge of the law, experience, skilled screening and selection, established policies and procedures that prevent problems or nip them in the bud, professional marketing, and so much more.

Regular inspections for any signs of wear, cracks, or water damage are advisable to maintain the facade's integrity.Parking and Access: The covered parking area is a significant advantage for tenants, but ensures the area is well-lit and secure to prevent any potential safety issues.Interior Features:Layout: The open floor plan with large windows ensures ample natural light, which is appealing to tenants.

Also, I lack familiarity with the construction loan process and what protections that may be in place (if any) to prevent FIG and their builders from going over budget on the project. 

Surface- Rock or hard surface (concrete/asphalt);If on rock/asphalt put your tongue leg or stabilizer pads on widerpads to spread the weight out.

Whereas where you are located (California) accepting partial rent prevents you from proceeding with eviction. 

I figure a one time expense to prevent major water bills in the future might be in my best interest as long as it doesn't cost too much. 

Doing the above probably doesn't solve this directly, but by removing and reattaching all the balusters the connections are tight and the glue joints are solid...if that's not the issue then you may need to introduce some other improvement to prevent the wobble.

@Sung H Kim Depending on your location netting will likely be required at least on both sides of the range to help prevent balls from straying.

The second  problem is it is difficult to find people who will do preparation of the land for the mobile hand ,and also  I don't really know what is better/easier/cheaper...putting concrete pillars in the ground every 8 feet or putting down an asphalt or concrete slab.

They need to drop probably down to $250 but they can’t/wont do that and the cleaning fees and cost to operate the pools prevents them from doing so.