Sue to evict the person.
I am a former federal and State prosecutor and now handle criminal defense and personal injury/civil rights cases. Feel free to check out my web site and contact me at (212) 577-9797 or via email at Eric@RothsteinLawNY.com. I was named to the Super Lawyers list as one of the top attorneys in New York for 2012. No more than 5 percent of the lawyers in the state are selected by Super Lawyers. The above answer is for informational purposes only and not meant as legal advice.
If the tenant has not paid rent you may bring an eviction proceeding for non-payment. Before commencing the proceeding you must make a rent demand. The demand can be made orally or in writing. If it is written if must be served on the tenant at least 3 days before the eviction proceeding is commenced. The best thing you can do is to hire an experienced landlord attorney in the town or surrounding area where the mobile home is located. The cost of the attorney will be much less than the amount of rent you are losing.