Finally, you could consider electronic locks where you change the codes between tenants.

Currently, I live in Hawaii, house hacking my own property, and am looking to expand into out-of-state long-term rentals.My goals now are to master the art of wholesaling, continue raising private money, and build a strong portfolio of long-term rentals.

Do you have both physical and electronic copies of all the necessary paperwork?

There is as much art as there is science to all of the above.Neighborhood classifications are the same way. 

It's closing deals that is a separate art. 

Currently, I live in Hawaii, house hacking my own property, and am looking to expand into out-of-state long-term rentals.My goals now are to master the art of wholesaling, continue raising private money, and build a strong portfolio of long-term rentals.

@Art Marquez  for your architecture needs!  

Here are some of the areas that I focus in on:West side - West boulevard, Cudell, Clark-Fulton, Jefferson, Bellaire-Puritas, Old BrooklynEast side - Fairfax, Buckeye-Shaker (the north side), Waterloo Arts District, Garfield Heights, Maple Heights, Newburgh Heights, Lee-Miles (the north side), Bedford

Located two miles from the Strip, it offers a blend of interactive attractions, art installations, and cutting-edge technology, making it a favorite for tourists and locals.

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.