A couple of points here.
1. It seems that the property was tied to your job. This may significantly change things as access to the property may be essential to the function of the job you left. Whether that makes a legal difference or not, I don't know but there was a complaint amongst landowners when agricultural workers got rights for their tied cottages etc.
2. I used to be a landlord in the UK (Scotland). I think laws are slighlty different but conceptualy similar. Once you are in a property you are normally a tennant. If no written lease is produced, then you have all the aces in your hand as the landlord is forced to use whatever the courts dictate to him i.e. he could be faced with a sitting tennent. Once you are a sitting tennent, it is almost impossible to raise rent, evict or any other of a host of things a Landlord might legitimately want to do.
In your case, you may not have been paying rent, in which case you may not have been a tennent. All other things being equal however, the Landlord acted illegally and the police will litterally lock him up for this. The courts are extremely serious about tennent rights and the landlord will be in a world of grief if you report him.
Assuming that you were a tenant, I would definitely report him. Also, depending on your ability to get other accommodation, present to the local authority as homeless and they will be obliged to accomodate you. It is likely that they would report the landlord themselves I think.
Hope things work out for you.