Knob and tube wiring, galvanized and cast iron plumbing, potentially not built with structural integrity (I have owned plenty of these old buildings with undersized joists and rafters).

I am interested because I think I can increase their income because there are so many obvious things that they are not doing. e.g online marketing, a website, social media, etc. 

At the end of the day, door knocking, cold calling, talking to your sphere of influence, mailing, social media marketing, it all goes down to bringing value to people as the local expert, educating, giving them something valuable, and then asking EVERYONE this simple question: "Have you been thinking about moving?".

There are other strategies (cold calling, social media, landing pages, ad retargeting, etc) but most folks utilize those in addition to a solid and persistent direct mail marketing campaign.  

The answers are as interesting as they are unexpected, and I didn't suspect that the work "Fraud" would even have crept into this conversation, so I appreciate your a warnings.We are saying here that investors of honesty and integrity should never work on another deal B at the same time without let lender A know all details about it.

I think it is more of an integrity issue and people doing what they say they will.OPEN FOR DISCUSSION - WHAT'S YOUR THOUGHTS OR EXPERIENCE WITH THIS? 

I've been replacing all lighting with integrated LED fixtures for the past couple years, and have yet to have any issues.

@Paul Martin  Integrity Law -  they have a title agent and re attorney, ask for Aaron.

Vetting tenants is crucially important for being a landlord and as owner of the property, nobody will complete this process with as much integrity as you will.I suggest exhausting your #2 options before being willing to give up 10% of gross rent value.  

I'm interested in experiences owners/managers have had with remote/wifi technology such as Nest - I'm thinking mainly for climate control, but also for things like security.I like Nest's integrated system, though I'm a little concerned the thermostat might be TOO smart - I don't need a system that learns patterns when there will be no pattern to guests and their preferences.What systems do you use, particularly that are high on functionality but low on cost?