Make sure that that person has a lot of experience, and make sure that there is at least 20% - 25% equity over and above the amount that you have lent and in your agreement it states that they can have no other liens or loans on top of yours.

@Lulu LueHUD has 2 online databases of lenders showing which ones have the most experience with 203k's. 

@Michelle Wang, I completely understand your frustration, and I want to say that you are not alone in this experience.

Hello,I would like some advice or experiences on how others deal with room mates who don't follow the rules in the lease.

Nights, weekends, holidays, etc.To keep this on-topic, though...DO figure out what's healthy for you to manage but remember it's a process where every experience teaches you good and bad (and be patient with that process).DON'T sweat the small stuff (damage/costs under $50, undisclosed dogs, etc.) but DO find a way to learn, prevent, put in better practices to maintain your sanity. 

GC's get paid off of the work, not a flat rate... but in your experience, would you say that window of rate is generally 10%-20% project depending, or more towards 15%-30%?

I have experience with minor to medium size rehabs but nothing as extensive as needed here.

Does anyone have any experience (or know someone or a company that might) be able to demo a concrete staircase Ana turn it into a driveway and ADU ramp ?

I would recommend talking to many lenders/brokers to see which one has the most experience funding these loan types. 

Does anyone have any experience with using an FHA 203k Loan on a multi and turning it into a house hack in Massachusetts?