Hello, I did rent a shop as a individual and as a general contractor did all the tenant improvement myself with a help of other contractors such as Electrician, AC engineer, Plumber and some labor workers, in all i spent about $60,000 on this project, After completion i was informed at this location has a legal use which can not be used for the business i had in mind, Landlord accept the responsibility and willing to cancel the long term lease but when i asked for the money i spent for tenant improvement he refused to pay, now i am considering to use my right as a general contractor and the person who did all the work to file a mechanic's lien against the landlord and his property, am i right to do so?