I can set these people up on automatic MLS emails so that they get emailed the moment a property in their search criteria appears on the market, but I've found if I present off-market deals, they will eventually find the source of the off-market deal (often a wholesaler) and just go direct to him/her.

Main perks online lease signing, online payments, automatic late fee accrual (among many others).    

Or is contract automatically void?

I was initially under the impression that a lien was only placed on the house if payments were missed, I didn't know that the lien is placed automatically as a condition of the roof financing in the first place, but that does make more sense.

Just creating an app doesn't automatically have benefit.

It just automatically transfers the rent from the tenant’s bank account to yours.Lastly, one of the other names I recognized on that list was erentpayment.

@Jonah Korchin Think about it like this, list providers make their money by selling their 1 list to as many people as possible so you’re automatically competing with tons of other people.

We require all our tenants to pay online through a portal (which has an automatic payment option), but often the small tenants are accruing late fees and or NSFs. 

The 88-89% is the only number that will be automatically accepted.

Whereas a straight cash-out re-fi will automatically increase your payments and thereby kill your cash flow immediately.