@Sunjeeve Weerasinghe we have moved entirly to vinyl plank in our properties (and so have a lot of major builders) as you can get commercial grade with 30+ year wear layers on them, they are water proof, do not chip (though they can be cut or torn) and are quite a bit cheaper than tile. 

It's another layer stopping them from suing you directly assuming you didn't do anything and maintained the property.

Paying for education is vital, mentorship can go both ways, only you know if you will take action.

This is another layer of cloaking within the 1065 tax return and allows your rental income and deductions to fly just a little closer to the ground as compared to Schedule E page 1 of your 1040 tax return.

Umbrella insurance provides an additional layer of security to those who are at risk of being sued for damages.

Feel" the true beat of the portfolio's income and expenses performance before using leverage to speed up the growth of your portfolio.Using cash only will protect your bottom line in scenario's like yours when the properties don't perform as expected as you won't be on the hook to cover the mortgage expenses.Just my bias opinion so take it with a grain of salt.I've also witnessed many finger pointing instances when others get involved.Like a new property manager, realtor, contractor, etc...I've had my share of bad experiences with realtors that threw my company under the bus and got in the investors ear to flog it at any price just so they can make a quick commission.It get's very messy, painful and pretty much turns into a disaster with the investor not knowing who to trust or what to do anymore.Similar to what you post about has happened to me and my company many times and if allowed the opportunity, we do our best to fix and come good.Some loose trust and faith and I 100% understand, but as soon as someone leaves the wing of my company there is not much that we can do because as I mentioned above, everyone else get's involved, has an opinion and the situation get's very messy.Having in-house property management is vital when such a "crisis" arises.I tried out-sourced PM when we first started and it was a disaster.We had no choice other than to bring it in-house.Hated my life for the first 5 years with in-house PM and fast forward 10 years, it has become our "golden goose" and a very well streamlined and beautiful business.From what I've seen and read on the forum and elsewhere it seems like RTR has a good reputation and what you have mentioned seems like a "worst case scenario".I hope RTR will assist you the best they can and all I can say is learn from the experience and don't give up.Do your best to weather the storm and focus on minutia.Don't have regrets and don't spend too much time dwelling on the past.Glimpse into the past to get guidance from what you could have done better and think ahead.Move forward smarter, more experienced and better.Wishing you well and much success with your future endeavors.

I look for something that is around 6mm in thickness and has a wear layer of around 20 mil.

"Trust Layer" might but I think its more for subcontractor COI tracking.

Older buildings likely have nothing but one layer of sheet rock between the floor boards/joists and lower level units.

I'm also not sure if us rehabbing their unit and having them come back to start a new lease in fall would add another layer of complexity.