If the owner is knowing lying at this time, then you may be able to sue the owner or company for fraud if they caused you some loss due to their lies. However, if they are not lying but circumstances change later, that is not fraud.If you relocate your family or leave an existing job based on a promise of employment and when you get there, there is no job for  you, you may have a cause of action based on "promissory estoppel," or the fact that the owner deliberately made promises to you to get you to do things, and you did those things, which can make the promise(s) enforceable. But if there is a job waiting for you but after some days or weeks, you are fired for some problem--even just a bad "fit," a personality clash, or difficulty getting up to speed fast enough--or the job goes away (such as if an account is lost or funding cut), or the whole company or division or office is closed, that is not a breach of promise; the promise does NOT obligate them to give or guaranty you a job for the indefinite future, but just to have a job for you when you get there.The problem is, all employment is employment at will; the presumption is that, absent special circumstances (like the employer lying to you about a job existing), you can be fired or denied employment at any time, for any reason.The only way to protect yourself and your family is with a written, signed employment contract, which guarantees you either employment for a given period at a given salary, or else guarantees you some severance if the job goes away or you are fired (other than for cause; employment contracts typically do not protect you if you are fired for good cause, like unexecused or excessive absenteeism, violating compan policy, etc.)If the employer will not give you an employment contract to protect you in a situation like this, you may wish to rethink whether you wish to take this job and work for  them; given that you are moving 1,600 miles, reasonable employers would typically give you and your family at least some protection. With some agreement, you are amost entirely unprotected.