Fairly common scam.One thing perhaps you can do as well is go when they are not there. 

I am fairly new at landlording. 

Not as concerned about the facing or doors.How things are joined also comes into play; glue breaks down and water will swell particle board much more then plywood or solid wood.

If you mean playing the assignment game without being a FL licensee that is NOT legal.

For example, the profit split on a ground-up development deal would be much different than what you’d expect to see on a plain-vanilla cash flow play. 

Hi Jd, I originally thought the same, and as you maybe able to tell, I'm fairly new.

This means the fair market value of leasing services is one months rent and you charged him two months.

If the GC that quoted you $50/sf looked at the place, I'd find another GC because they should be able to give you a fairly detailed estimate with a contingency.

If not, outside of BiggerPockets, I would suggest that be the first place to start to surround yourself with like-minded individuals in the Real Estate business.Along with BP, DIG has definitely played a big role in my Real Estate investing career through networking and education. 1st meeting is free.

I'm fairly new to this forum.