To protect him, we got an extra $2MM in a separate umbrella policy.  

LLC may or may not better protect your personal assets if something happen with your tenants and / or with your properties.If you'll decide to open an LLC, your rental properties will need to be transferred from your name to LLC which will cost you money. 

Does anyone know where I can find good construction contract to give me protection for my Rehab work being done up to standard ,and my completion due dates being meet on time ?

Meaning getting a strong liability policy on the property will protect you as much or more than an LLC will.

This gives you some protection from this exact situation from happening.

Does anyone know where I can find good construction contract to give me protection for my Rehab work being done up to standard ,and my completion due dates being meet on time ?

It's a bit higher than most conventional loans, but it also doesn't go on your credit report and the loan can go as a LLC for liability protection. 

properties are in llc and I just want to know any benefits and tips moving forward. I'm a newbie !

I would like to do this in a way that as much as possible of the gains from these sales is protected from capital gains taxes, so if anyone has advice on how to do that, it would be appreciated. 

The good news is that she has no lease and nothing to protect her.