If the tenants don't get along they will have to lock up their "interior" doors every time they use the stairs. 

All of the new windows are missing interior casings and the entire interior could use a new coat of paint.

It needs quite a bit of work (completely new roof, fence, landscaping, interior...), but if the current owner is reasonable and I can get it for a price low enough it would be a great deal for a great cash flowing property.

I will call construction companies but I think they quote by square foot.I am amazed at the lack of information available for average cost per square foot to rebuild condo just interior and house everything.Best ballpark I can get is $75 - $125 / ft for condo and $200 - $250 /ft for house.Also insurance agencies I have dealt with tend to jack up the personal property limits for example $20K personal property for a 1 br 1ba 504 sq. ft. condo - give me a break.Here is what I will go with unless someone has better recommendation:-------Condo 504 sq ft HOA covers all external :504 * $100 ~ $50K Property + $6K Personal (appliances mainly)-------House 2300 * $225 ~ $518K Property + $10K Personal (appliances mainly)Also what if it cost less than the insured amount does the insurer get to keep the extra?

@Joseph England I was slackjawed when I saw the "after" interior photos.

This is an interior rowhouse, and like many in Baltimore and other older cities, the middle bedroom has no window except the skylight.

Interior painting is way high.  

So, we're not concerned about absorption when we renovate almost like new interiors on 1980s apartments and get $1K/month while Class A charges $2K/month.  

Not much new in the findings we didn't expect except for visible termite activity (doesn't seem too big or uncontrollable) and water damage to a bedroom window frame and interior wall due to a poorly installed AC unit and subsequent rainwater entering the house at the installation site (also reasonable to repair and capital budgeted for the fix).  

So when it comes to permissible interior work it maybe a good idea to check w/the DOB’s website.