on your post its not enough information for me to give you advice on, i suggest more detail or a picture so the people on the BP forums can give you accurate advice on the matter you have a large range of people from contractors with many years to investor who have seen about every problem you can think of that can help with enough info .

Does this sound accurate?

.:...Remember, there is nothing passive about a 100 unit rental portofolio.From an effort perspective, that would be a reasonably accurate statement.

It could be that the contractor has had enough experience in recent years as far as what an engineer would require in a scenario similar to yours, and could base a fairly accurate preliminary estimate off of that.

Thanks @Jerry Stanford the way you could assist me I would say is helping getting a close estimate to accurate repair cost.

I went through the transaction believing that what was in the lease was accurate.

Besides making sure your comps are accurate it will help you become an expert on housing inventory in your area. 5.

It'll save myself and potential contractors whom I work with time and help create more accurate rehab cost estimates which are vital to the types of deals that I am looking to structure and execute.

The team I worked with was great and I would do it all over again, they were  professional, courteous, thorough and accurate with what I would expect and when.  

In any case, talking with your local lender would be your best resource. to get the accurate info.