For young people who are gainfully employed and mobile, buying a duplex with an FHA loan is an excellent way to get started.

I would spray paint (little cans) the tracks and install more modern ceiling tiles.

You may also be opening up yourself to very costly remediation.As long as you don't disturb lead paint by chipping, sanding, cutting into it, and as long as it has a good coat of modern non-lead paint, you should be ok. 

Our first plan was to get into the storage unit business, but I think we've found the Mobile home (or RV park) business more enticing.

However, I’d like to use some of the cash that I paid for the park to buy more mobile home for the other lots.Not sure I can find a local bank that is interested in this, but hoping someone on bigger pockets would be.

It actually sound like a Modern-Day Assumption Loan If you ask me, minus the bank.

My name is Robert I own a duplex and Mobil home that’s paid off with $1165 space rent.

My name is Robert I own a duplex and Mobil home that’s paid off with $1165 space rent.

This is a Mobil Home Park where you own the land not the homes correct?

I am planning on painting it more modern colors, furnishing it, and marketing it as a corporate rental or month to month furnisehd rental once the current tenants leave.