Riehle[1] https://apexaz.com/old-pueblo-finally-waking-up/[2] https://tucson.com/business/raytheon-on-hiring-spree-as-tucson-expansion-takes-shape/article_3fd571fd-8d2c-527c-b22c-ccfdbe1e9bee.html[3] https://tucson.com/business/tucson/vector-space-to-open-tucson-manufacturing-plant-bring-jobs/article_3d1bde72-b236-5e38-9c9e-24036233d55e.html[4] http://tiboaz.biz/2018/03/17/tucson-to-receive-a-large-amazon-distribution-center/

@Tiffany Miller  Scott is spot on, back taxes just get paid at closing and are deducted from the proceeds the seller receives. 

Kept tract of all my records/ receipts/ costs and created excel spreadsheets to hold info and then mail merge to word. - Handwrote letters at first and quickly learned that I'm going to print instead.

Today I received an  ALL-CASH offer from another investor for $350k closing next week if I accept.

your friend has introduced you to an excellent tool!

Thanks, but what about the payments I receive?

Invoicing electronically throughout the whole bill, receive payment, deposit and reconcile cycle can ease the bookkeeping burden.

You are getting solid advice here from Edward, Doug and Joe.An additional way to how Joe suggested to receive 'rent credits' , I also like closing costs. 

It is another job, airbnb is not passive, but we are turning our liability into a cash-flowing asset so we can get into an excellent financial position as fast as possible.

Reaching out to a lending attorney is excellent advice, otherwise, I would've just called a closing attorney.