If what is there when they give you property back is good, no harm no foul.In the future, your lease should strictly prohibit animals that are not on the lease (which should already be in your lease).

BP offers free online videos and educational courses for you to watch and learn from.

Making the connection in person is completely different from an online interaction.

I know that the world of residential and commercial are two completely different animals so making the transition is really scary and intimidating. 

I am going to have my tenant pay rent online directly into my new checking account.

Online videos on social media platforms, educating your clients about nuances in private lending, coming on a popular blog to help people with financing issues, and connecting with others in your industry that specialize in something else. 

I'm using QuickBooks Online.

Are you aware of any online forums for people who are severely allergic to animals and who want to find a vacation rental that is less likely to trigger their allergic reactions? 

I've seen post online that say that Section 8 will help you with the cost to remodel a home if you then place it on the Section 8 program.

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.