Maybe a nanny cam of some sort on the water meter box?  

If they want to sell now or in six months, you need to know before giving them an offer so you don't lose leverage by giving them an offer now instead of closer to when they are ready to finalize.Since you are already going to the property, take good pictures and make sure you capture the electrical panel, HVAC labels, and plumbing material.

Obviously mounted up high in a readily visible spot "trail cams" work just as well (as a possible visual deterrent), very cheap online. 

Once a license has been issued, the City will provide an identification label which must be posted on the exterior of the property at all times when the property is being rented.

They can call and leave a voice message but the response comes portal, email or text.GCE protects tenants from unsophisticated alarmist landlords who label a tenant a nuisance tenant because they got one too many calls about a wasp or heard a neighbor gripe that they are "rude."

On the other side of that, 3 prong outlets that aren't grounded are supposed to be labeled "not grounded" because you can't buy 2 prong outlets any more.

Tell him we cam do three of these per month if he can find the opportunity. 

@Cam Schwartz let’s connect.

Navigate to the users profile, and you will see a section labeled "References".

Do-it-yourselfers will want more white-labeled content like what Groundbreaker offers.