In addition to the toilets you can look for water damage on the walls, floors, ceilings, etc. in case there is a broken/leaking pipe somewhere.  

Unit was all original from 1986 and needed updating on interior elements.Complete Rehab: floors, walls, ceilings.In progress Rehab: Kitchen, Master Bath.Planned Rehab: Guest bath.What made you interested in investing in this type of deal?

Upon my visit, I know the house needs wall repainting, replacing bathroom tiles, installing 3 doors, and renewing kitchen sinks.I am very inexperienced when it comes to these fixes and def want to avoid all of that work myself. 1.

Thank you for sharing how you got into this.My sense of this 1) steep learning curve 2) not easy 3) there is actual work involved :-) 3) it's like sales - you have to reach out to a lot of people and get a lot a lot of rejections 4) if you keep beating your head against the wall eventually you will get a break and things will come together 5) continuous education and outreach is important.But really I have no idea as this notion came across my path literally 48 hours ago. 

If nobody pulled permit, the job was never inspected so there's no way to know what is really going on behind the walls. 

However, not really knowing what the codes are or finding things behind the walls could be costly, so make sure your counter justifies the means. 

A-Frames are really difficult to work on with sloped walls everywhere.

a good tenant is one who can and will pay their rent and can prove it with references. be careful of the tenant that shows up with a fist full of cash and wants to move in today and they are have a U Haul attached to their car and 5 kids are bouncing off the wall in your newly painted apartment, their car looks like a dumpster and they are vague about the telephone numbers of their last two landlords. 

Per our discussions during the “lease signing process” since they were college students, none of the tenants would be occupying the property during the summer and since this was the case, I relayed to them that I would take that time to make renovations (repair holes in walls, paint, renovate bathroom, etc.) to improve the state of the property and have it available by August 1st (they stated they wouldn’t even need the property available until Aug. 12th).Here’s where the fun starts.

These are located on the backside of the (very) old baseboards on the plaster walls of an older condo.