I think so, but only because your trailer would be on your landlord's property.
No, without a written lease, the landlord can only evict the same as a month to month lease agreement (30 days) but the protections to the tenant and landlord are not stated.
Yes. In a month-to-month tenancy at will, either party can terminate the tenancy for a reason, or for no reason. In a lease, the landlord can terminate the tenancy for several reasons, including too much noise.
only with the permission of the landlord in writing
Not without a reason, like some kind of a breach by the landlord.
Yes, assuming the tenant is given proper notice, which on a month to month lease is typically 30 days.
If the lease is month to month, the landlord just has to give you a month notice and you are gone. If there is a lease that is still in effect, the landlord is responsible for costs that you incurred as a result of the breach of the lease.
It can go either way, depending on what the landlord wants. If they want you to sign another lease, they can require you to do so if you wish to continue living there. In absence of another lease, you are considered to be on "month to month" under the same terms as the original lease.
Not really: a landlord can reclaim their property at the end of a lease-- no material reason needed-- or give notice to a month-to-month tenant (or week-to-week, if applicable).
Was the lease supposed to be a month-to-month lease or for a year or longer?
Technically, if you are in a lease then you cannot break it or the landlord can keep your security deposit and last month's rent. He can even sue you for loss of revenue up to the time the apartment is rent it out or the lease has expired, whichever comes first. That is the technical rule. But now here's the compassion issue: if your wife has passed away and there is compelling reason to break the lease, I am sure you can work something out with your landlord in which he can cancel the lease for you. But the landlord is usually not obliged to do this.
If you have a lease your landlord would have to take you to court to have you kicked out of the apartment. If you are a month to month tenant then the landlord can request that you vacate with 30 days notice.
If you are stuck with a 12 month lease you will not be able to get out unless you can convince the Landlord to end your lease agreement early.