If one of them fall out, injures or kills someone, there'll be a lawsuit.

If the repair never took place and someone was injured, I would be exonerated by the letter. 

He's going to stammer and be embarrassed and have excuses but you married him, time to get him cooking bacon or if he is mortally injured to release all liens and get someone else started today. 

If the prior tenant did a sketchy patch job, and she fell through, got injured because of the landlord's negligence, IMO they should sue.   

You need to confirm with your insurance provider that they will take responsibility if some one is injured fighting a fire.It is usually preferred that tenants vacate a property in the event of a fire as opposed to risking their life fighting a fire.

He paid the contractor via personal funds, not through the PM account.Unfortunately, one of the workers was injured during the project.

For instance, what happens if someone catastrophically injures themselves on a condo common area and the overall condo's liability insurance doesn't cover the multi-trillion dollar settlement?...

If one of the workers got injured could they sue me, and if so would general rental liability insurance cover this?

Your liability covers you if one of those workers injures somebody else that isn't on your workforce.And when you are aware that they have no insurance of their own, your own insurer might not have your back ...Definitions:http://www.irmi.com/online/insurance-glossary/terms/w/workers-compensation-and-employers-liability-policy.aspxhttp://www.irmi.com/online/insurance-glossary/terms/c/commercial-general-liability-cgl-policy.aspx

Just to throw out a wrench, I would think that you are opening yourself to liability suits if there were injured or injured someone while using your equipment.