Risks of having several mortgages in my name?

[Rich Emery]

I currently have 4 mortgages in my name.  3 investment properties and 1 personal residence.  I'm wanting to buy a lot more real estate (buy and hold).  I know I'm going to be capped on personal mortgages in my name after another few mortgages - at least that's what I hear (I've heard this can vary).

Should I take pause having so much debt?  I have good umbrella insurance.  Should I be concerned about so much debt on my credit report?  I feel as though all 4 of my properties are 'safe' in that they cash flow fantastically.  I have 6 figure w2 income.   I'm just trying to wargame this and make sure I'm not missing anything that I should be aware of or concerned with regarding this approach.

Other questions - is there a way to get around this 'cap' on personal mortgages?  Meaning...is there a way to do this with 10,20,50+ mortgages?  If not, what tools can I use to continue to grow my portfolio once I'm capped on personal mortgages from most banks?  LLCs?