Renting a old trailer.. is it good idea?

[Kevin Kim]

Hello, we submitted an offer for a property which has very old trailer.
They are permitted, however they don't have a foundation which was legal long time ago. 
However power, water, septic, and even gas is connected.
So We are thinking to flip by investing just $10,000 and rent it. 

However today, I googled and visited this website( https://www.stimmel-law.com/en...) and I saw this...

    Landlord Obligations for Habitable Premises - The Basic California Law

    Under the California Civil Code, landlords of a property must ensure that certain conditions are met which make the living space habitable and safe for potential lessees. 
    These conditions include ensuring proper electric, gas, and plumbing utilities, as well as installing proper locks and security systems. If a landlord fails to meet these
requirements, the lessee has the option of deducting the costs of repair from his rent or vacating the premises with no constraints. A landlord can also be held liable for certain
    breaches of security that occur on his property, if the unsafe condition or act could have been foreseen or prevented.

Because the trailer is too old, and those models might not be manufactured anymore(It looks like in this link but older  https://www.airstreamforsale.com)
So I guess it might be hard to meet current codes with the old trailer unless we spend lots of money. 
If we don't fix up to code, then I think tenant might be able to sue us  If something happen. 

Am I worry too much, or is it make sense to worry?
Is it better to pass the property, or is there a way that we can protect us from possible issue. 

Thank you.