Also for as is value id say around 40k needs multiple windows, peeled roofing , new drywall , flooring , exterior and interior paint and cosmetics yard work etc.

Auto Row in Oakland will be going through the roof with its 1800 new units being built in that area.

I put in a new roof, redid the floors, painted, did yard work, window treatments, removed asbestos in the garage.I had the place reappraised it was now worth 335k. 

Hi Manolo, My company offers everything under one roof from realtors to find you the property you are looking for, mortgage brokers to get you funded, contractors to do any work you want on your property and ultimately present it back to the investor to sell, rent or move in to the property.  

I am the owner of a construction company that specializes in residential and commercial roofing.

‘Buy as many doors as you can under one roof’ concept is interesting.

Some main reasons I have found amongst tenants are: poor credit, inability to save down payment, aversion to the commitment of buying and the responsibility it entails, ability to pick up and leave once lease is over without having to worry about selling first, and fear of being unable to properly maintain home and repairs (roof replacement, a/c and furnace issues, flooded basements, etc).Nada

I have been under the house and in the attic, foundation and roofing looks good. 

Is that a commercial metal roof?

It is basically like having many companies under one roof, but each "series" has its own assets and liabilities and is insulated from the other properties.