@Angela Simon, If it wasn't your son there is a small chance that your accountant would let you purchase the 50% of the property you don't own. 

Not sure if they just want to get your business or not, but there should be a catch. 

Since when should any local govt have the right to tell someone they can't rent or lease their property or other items. 

There's just so much wiggle room doing this, especially since you're dealing with a family member who completely understands the finances of the park. 

They might have ideas for credit improvements, debt pay downs, etc to help you get there in 2 years time. 

You don't want to lose your rate on the house you are living in now unless you want to sell it so since that is an owner-occupied, you need to stay there and save up the 20 percent for the second property based on what you said.

Is there a leak?

I can imagine having a broker license adds another layer of responsibility to making sure deals are solid. 

There is a great group of members on here to connect with.

Please let me know if there's anything I can provide to help you with your book.