And the owner is very responsive to questions or issues (emailed him at night and received a reply within a few hours).  

They may also be able to temporarily relocate your tenant to avoid any other issues.

Most negative comments come from competitors, those nitpicking minor issues, or people who haven’t worked with the company at all.

.**** My current issue with the lender that I recently spoke with was that I had to have experience building a SFR on my own property and have sold or refinanced and held in order to be approved for the loan.

I've run into some issues where clients get a little anxious over a valuation that came in low or a condition comes up that is fairly minor. 

I have some acquaintances that have wrapped DSCR Loans without any issues.

Many times the tenants are income based and pay 20-40% wherein only 60-80% may be guaranteed.Aside from the rent percentage issue is pride of ownership.

There are definitely advantages to the liability issue when using an LLC, but there are some disadvantages as well. 

If there are any legal issues that I have to worry about etc. 

Because someone looking to live in the property will pay more because it's usually an emotionally drive decision.