Are they able to charge me?

You can try having an attorney writing a letter to the collection agency and/or landlord.

Discrimination Wrongful termination Breach of contract Overtime wages compensation for unfair dismissal

A full consultation would be necessary to properly advise you.

Employment law: Startup company is cutting me out of my equity based on an agreement I never signed. Do I have a case?

Depending on what exactly the communications between you and the employer stated, it may be an enforceable contract.

I bought a house and real estate agent assured me it was legal with no problems, county sent me a letter of illegal const.

You can sue the agent/seller for a failure to disclose.

Is it my fault if a car gets rammed into mine? Who usually takes fault? The car who was the cause to this 3 car accident fled.

You should report it your insurance company and let them handle it.

Can I tow a vehicle from the property I own if the tenant in whose space the vehicle is in refuses to move it?

Yes, you should be able to tow the vehicle in this instance.

A business attorney should be able to help you with this. A full consultation would be necessary to properly advise you.

What can I do now If i already sign a blank contract?

Your question is confusing. What exactly is a blank contract? And what do you mean then you signed with one numbers?

What is the difference between a contract and an agreement?

They are synonyms, used interchangeably.

For a contract to be legal, it must be signed by all parties?

It must only be signed by the party against whom enforcement of the contract is sought.