We use Propstream but I am looking for some added info that Propstream does not easily provide  @Sean OToole is the owner and he has built an incredible platform..

Nice try, but this time does not count.In order to meet 750 hours, your wife will need one of the below:- do something else real estate related, like wholesaling or realtor- actively work on expanding your rental portfolio - have an extensive DIY rehab, like a month-long full-time rehab (and then she might need another kind of rehab)- a calamity such as multiple properties damaged in a storm where she will have to deal with insurers and contractors- something else out of the ordinaryAgain - if all you have is 9 single-family properties with stable tenants and typical occasional maintenance - you don't have enough work to collect 750 hours.

You may not feel the need when you own just 1-2 properties, but it may be more relevant if you plan to expand. 

So I'm a fan of buying in the path of progress from here since it's starting to expand outwards into cheaper neighborhoods.

People who have service dogs (or horses, as these are the only 2 service animals) that are genuine have no issue disclosing that on the front end and can answer the 2 questions easily - is the animal necessary for a disability, and what specific tasks has the dog (or horse, if you're getting one of those) been trained to perform? 

My wife also made it clear that if we were going to expand beyond what we already own, she didn’t want to be involved in managing them.

If you are the nicest 4/2 out there in the market and all the rest have not been remodeled in say 15 years, and your property was remodeled a month ago then the price on your property will be easily justified at a higher price on the listing side. 

This could easily cost you $10’s of thousands if you plan to stay in the home 5+ years when you return. 

Bigger Pockets is a great place to find a real estate tax accountant.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.

I would like to expand a bit and put some systems and processes in place and generally get a little more serious when it comes to the management side.In Brandon Turner's Book- The Book on Managing Rental Properties, in chapter 3 he talks about creating a company policy binder.