With 850K equity I would enjoy the cash flow I should be receiving and sleep very good at night.
If there was very little cash flow, then I would review the property or properties and see if some of them should be sold, refinanced or rents increased.
One think I would not do is to borrow the max I could and buy more and more. Having some breathing room is good and allows blood pressure to be lower.
I presume these properties are free and clear and that you have a super cash flow.You should think about holding. Cash flow is forever!!Thats how the old money people stay rich, they never sell producing assets.Grow your business slowly. One thing you do not want to do is start to refinance yourself back into debt by getting over ambitious. been there, done that…
Sit down and analyze your financial situation and decide what are your long term goals? Do you have children? Do you want to leave a legacy to them? Do you want to travel? Do whatever you want now while your healthy.