Side note: the resident put plastic on all exterior windows on the exterior of apartment and requested crawl space vent be closed.

When preparing for the inevitable costs, always make sur you know the age/condition of your big ticket items.Roof, plumbing, windows, electrical, HVAC, foundation 

I had to put up fences along drive under garages that had never been there, fix window springs that wouldn't hold up a window, etc.  

Maybe stack as many people in a one hour showing window as possible.

Unless we note otherwise in the listing information or disclosures, we fix everything that is broken or not functioning properly, but we have had several recent requests that are expensive and I'm interested in your experience in handling things like:- this roof is old and we're worried that we may have to replace it (was inspected by roofer and determined to be functioning properly)- there are screens missing from some of the windows and we would like you to add them- we're concerned about the drainage and would like you to add gutters- the AC unit is old (age disclosed in disclosure docs, was tested by HVAC guy and running fine) So do you budget for this type of concession, do you "meet in the middle" or do something else?  

I also had to adapt: the house above was supposed to be a very profitable flip, but in the end, I had to keep it as a rental as my mistakes closed the window for me to exit gracefully, and profitably.

Our total out-of-pocket costs will therefore be around $7,700 ($3,700 down + $4000 rehab).The numbers look like this: Rent $650 Loan payment $345 4 years @ 5% HOA $130 Insurance $13 Property taxes $67 Maintenance + CapEx $80 For new windows and HVAC Cash flow $15 During land contract Cash flow $361 After land contract Cash on Cash 56% After land contract ROI 48% During land contractAs the numbers show, there is virtually no cash flow during the 4 years the loan is being paid off, but the return on investment from principal pay down is almost 50% PER YEAR.  

Leaky faucets, washer dryer issues, broken windows etc.

I just think most builders look at the numbers and say screw it and abandon the concept for a more expedient strategy with fewer headaches.The advantage of a shipping container is not it's strength (although they are insanely strong....IF you don't put doors and windows in them), but it's mobility (intermodality...trucks, ships, forklifts, etc.).

My two cents is that if you had a good experience with any professional by all means pass on their name (it's buyer beware -- people asking for referrals should know that it can go either way in starting a relationship with a referred professional), unless you know of something that's causing the professional's work product to slide.