If you think or assume that the tenant has abandoned the properyt, MAKE SURE that you document the property with photographs or walk through video before changing locks.  

Second if you do not have anyone you trust locally their are some good people here on BP that maybe you could pay to go and do video walk thru of your properties and let you know what is going on.

Larry Haun has an excellent video on YouTube about framing that I would definitely recommend in addition to his book.Put chalk lines on the floor where your walls will go.

youtube was really helpful for me. pretty much anything you're going to do someone has posted a video on how to do it.

@Roosevelt JeffersonThanks for video suggestion.

Uploading new videos on my YouTube channel twice a week and commenting on 2 other videos a day.4.  

I would never play a recording back to someone who did not give me permission to record the conversation.I am always thinking about the video cameras in my office where I have two microphones connected to the camera.

My kid gets a couple hundred a month after expenses mining some kind of crypto with a spare video card.

If you are out of fannie/freddie slots and only have a few properties that you haven't refinanced yet, why not roll the remaining properties into a blanket and cash out to max LTV. 

@Brittany Wilkerson I have some videos and posts about possession, especially about taking DIY possession without a court order.