More specifically, how many years of tax returns is needed to be shown to qualify for a cash-put refinance?

@Dominick Tonnarini, The only issue with your plan is that you will have to pay a sizable tax on the sale of that property when you do sell. 

If renters have to bring their own stuff, they're less likely to bounce because they'd have to move all their own stuff.)Month-to-month-- Principal, interest, taxes and insurance (PITI). -- You'll keep back maybe 5% of all rents for routine maintenance and another 5% for capX (big expenses like roof or furnace replacement).  

Can my sister and I donate land my deceased parents received deeds through in tax sales? 

You don’t necessarily need to be local but there are also misconceptions and rules to follow:https://www.biggerpockets.com/forums/530/topics/1056436-clearing-up-confusion-on-tax-treatment-of-short-term-rentals

I have to move, I lose job, he dies, etc.Who pays taxes and insurance?

I'm glad to hear you've had success, though I think tax liens and tax deeds are different animals.

My hesitation in keeping it is the huge property tax I pay every year about $18k.

They get the use, ownership, tax advantages, maintenance responsibilities, and you get the upside equity if it appreciates.

Jack Bosch and a lot of the land flipper guys who teach it like to have their students buying in the high deserts and remote areas of the Western US  or in FLA like le High Acres etc. this is were cheap land is and land that gets traded constantly at tax sales.. the play for most of them is really simple.buy at tax sale or with direct mail.. for a few grand  re-market them for more and sell on terms and collect monthly payments..