Any referrals or recommendations for good and qualified brokers, sellers, property management companies, loan brokers, insurance brokers, mortgage brokers, contractors, etc.

If you care to learn about the distinctions, read these posts:https://www.biggerpockets.com/forums/517/topics/1215989-expl...https://www.biggerpockets.com/forums/51-tax-legal-issues-con...2.

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 specializing in real estate taxation, business taxation, financial planning and tax planning.Consider working with your accountant remotely to expand your options.I would also recommend looking for an accountant willing to work with you throughout the year.

Please recommend a lawyer who works with fixed fee and does not charge for every min s/he talks to you. 

-----------------------------------------------------------------------------------------------------Recommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

For lenders, I have access to private money lenders or if you want to go the traditional route, I recommend checking out Coast to Coast - Jeff Weller. 

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

If anyone in this area has a good recommendation I would greatly appreciate it.

@Alex Hymanson  you should read the book...Storing Up Profits. 

I envision this portfolio supporting me during my retirement years—though I still plan to work, just in a different capacity than I do today.I recently finished reading "How to Invest in Real Estate: The Ultimate Beginner's Guide" by Josh Dorkin and Brandon Turner, which has been incredibly helpful.