I would not recommend RESimpli to anyone else.

If you can come in and operate effectively I think you'll find success rather quickly due to that.BTW - for a property management platform I would highly recommend Buildium.

I would recommend reaching out to the brokerages and see if you can do a presentation at their team meeting.

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

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.

Any recommendations or insight are appreciated!

Also go through a servicing company for payments to the seller, escrow can probably help you out with a recommendation for that. 

For an OOS investor, I would recommend looking at Kansas City as one of my CFO clients also manages 100+ doors for OOS investors and knows the market very well.

I would like a book or program recommendations in order to learn how to purchase and manage the extended stay hotel.

I don't ever recommend someone buy a property having never seen or been there.It sounds like @Dustin Hagemaier would be a great resource for you.