Electronically, or are you having them deposit directly, i.e. walking into the branch?  

But in the 5,000 history of modern humanity housing has been there. 

They can provide a modern and fresh look to your units, attracting potential tenants.Fresh coat of paint: Hiring a painter to give the units a fresh coat of paint is an excellent idea.

What I typically look for is something with good bones - structure is sturdy, roof is in good condition with many years remaining life, there are modernized plumbing and electrical systems.

Is there any good options for electronic lease agreement signing?

This would be a good option if you're looking to buy a place to do value add via major renovations on and really modernize. 

New modern lights and ceiling fans, quality furniture, Big screen TVs (not so expensive anymore), big washer and dryer, one of those cool refrigerators.If you ever go stay in a nice hotel or nice airbnbs, try to pick up on some of the things they do to make it feel luxurious. 

A small unit upstairs in a modern build would not be an issue bbut most two families are not set up that way.

For more electronically savvy, there is Zelle, Cozy, and many others. 

The ability to electronically sign really comes in handy with situations like this.