The very basics would be getting your furniture and shopping list together, keyless entry like Schlage (with backup lockbox with physical key very close as well), looking into insurance, local taxes for STRs, and moreAlot of ways to save time and make it easier to self manage with a property management software like Hospitable and data research like AirDNA.

When can you but the “over the counter” tax deeds.

Have a good CPA to help come tax time. 

As most investors seek to do in real estate, we want to generate positive passive income through multiple avenues such as equity, cash flow, and even tax advantages.  

My property tax increases have been 17% for both homes (no Proposition 13 like in CA with our max of 2% increase).  

A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant who specializes in real estate taxation, business taxation, financial planning and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

@Andy LanyiGood comments on how to reduce tax bill. 

Or stay a second year and sell tax free. 

I'd like to not "find out the hard way" if one of these sites are not a good match for me.The ones I'm considering are Propstream, Property Radar, ListSource, and PropwireSomething to note, I am looking to return to doing some wholesale deals, using criteria such as absentee owner, out of state owner, tax delinquent, vacant, liens, and pre-foreclosure..

First and foremost, buying more than one property at tax auction is advisable to help you unload those that may have liability issues.