I like some of his advice while some of it to me is garbage but the same can be true for anyone giving advice.  

What percentages are you seasoned investors assigning in your models forInsurance (I know that I can look this up but is there a baseline number to get an idea)Maintenance %ageRepairs %ageCap ex %ageManagement Fees %ageWho typically pays for (Gas, Electricity, Water, Sewage/garbage)Should I avoid properties where I pay water as it would eat into my profits?

The HOA in our current deal includes WiFi, cable, water, sewer, garbage, landscaping, and all hurricane grade sliding glass doors.

(Water & sewer, garbage, electric, gas, and any others I'm missing). 

Sounds like garbage to me and stay away from this company :(. 

On a similar note, we’re removing garbage disposals from all units during tenant turnovers.

Zestimates are garbage and we've ended more meetings with people who bring in Zillow printouts than I care to count.If you want the help of a professional, pay them for their time and expertise, @Haiyang A.  

Here are fees from property managers you can expect (but do note that it will vary):- Property Management fee: 20-30% (depending on the market and I think I've seen higher than that)- Repair Management Fees: Fees are tacked on top of actual cost- Setup Fees (getting the unit ready)- Design Fees (hiring a designer)- On-boarding Fees- Linen Fees- Cleaning Management Fees- Any other fees (i.e. resort fees)Expenses to expect (may vary):*Some may be covered by the property manager*- Supplies & Linens, Propane tank replacements, Water filters, - Utilities (water/sewer, garbage, electricity, WiFi)- Permit fees, TOT (local and/or state), business license fees, HOA fees, and any other local fees- Maintenance (air filters, touch up painting, plumbing issues, and etc)- New Amenities/furniture to improve listing as time passes - Upholstery cleaning- Pool & Hot tub cleaning - Gardener - Security Camera subscription- Noise / Smoke / etc monitoring - OTA service fees- etcI hope this helps!

Detroit has built a culture of bailing out these garbage tenants. 

I've later seen lots of them in person and some of them are 100% garbage when I thought they were pretty good on the show......I personally would want to talk with previous "contestants" or whatever you want to call them..... probably be best to do that behind the scenes since going through the production company they will either only refer to the happy ones or it will scare them off as you are too demanding and should just be grateful they MAY honor you with their offer.