Door knocking, pocket listings, internet presence, direct mail, etc are all options for you but the key is getting motivated home sellers in front of you.

A good website presence, SEO, socialmedia and aggressively picking up phone are helpful.

Digital records are acceptable.Also, if the rehab costs were fairly significant, $30k+, I'd definitely look into having a cost segregation done, it can be amazing!

.#1 would be consumer preference, Baby boomers have the presence of living in the suburbs, millennial then came along and had the preference of living near the CBD, however with businesses not being in person will that change?

Also for guidebooks we do a hard copy on the kitchen counter and a link to a digital version (Google Docs) sent with the welcome and/or check in info. 

When he went to the property he took a video camera and a digital camera - he pointed out everything that needed work and explained it on video - for instance the bathroom floor was showing some signs of wood rot.

@Kim Joppie do you have a web presence yet?

Another alternative is just finding a good number with repeating digits that is easy to remember - not as easy to remember as words perhaps, but maybe easier to call at the time they see the sign (vs. trying to figure out numbers for letters.) 

NOTES (continued) Note: Any documents being executed in conjunction with this transaction must be signed in the presence of an authorized Company employee, an authorized employee of an agent, an authorized employee of the insured lender, or by using Bancserv or other approved third-party service.

I looked into digital locks and the cost is very high when you have two doors per apartment.Doorbells - with the old houses the wiring is old and frail.