Either way, the executor or PR has to sign the contract.In my county, you if you have a subscription to the PVA or tax assessor's site, you have much more information available to you.

It is a subscription model that allots you a certain amount of texts per month.

Does RLS have a monthly/annual subscription model?  

I use traditional comps to figure property value then use AirDNA + enemy method to factor projected income and then do a traditional underwrite of income / expenses to find return.It is important for AirDNA to have a subscription to find the most similar properties and not just rely on the number it spits out.

These transactions don't included additional expenses the business incurs like meals, travel, dues, subscriptions, marketing, accounting, licenses, phone, internet, etc.

If you're using Crexi or Costar subscriptions, pretty easy.

Anyway, I bit the bullet and got a PropertyOnion subscription and I really like it. 

Check local courthouses or legal publications.Foreclosure Lists: You can acquire these from local courthouses or subscription-based services.Tax Delinquent Lists: Homes with overdue property taxes can be potential investment opportunities.

@Trenton Miller Is there a subscription plan or payment for QuickBooks?

You can get an AirDNA paid subscription and check out ADR and Occ for similar units.