@Mary Jay Real Estate Investing is a long-term investment. You really have to calculate what your return is over the life of the investment. If you only plan to hold it for a short time, I would never go with a negative cash-flowing property. But if you plan to hold it for 10, 20, 30 or more years, just project what you think you will be making. If you buy a property that is losing $100/month, that's $1,200/year or $12,000 over 10 years. If you look at the median home price over a 10-year period do you ever see where it dropped $12,000 over 10 years? Additionally, I don't think rents over a 10-year period have ever gone down, so your $100/month loss is probably less than that.
However, is that the best use of your money? Are you getting the best return you can get with your money? Generally I feel you could probably be doing better with your money and get a better return, but I don't know where you are investing.
Let me tell you a story of mine where I had a negative cash-flowing property. When I bought the property it was cash-flow positive, but the crash of 2008 hit and I was underwater on my loan and rent dropped so much I was negative cash-flow. Because I was underwater, and had the income to support paying the extra, I kept the property. I still have it today and provides almost more cash-flow than any other property I have. It's gone back up in value so much I pulled an equity line of credit from it that I use to fund repairs on my BRRRRs or flips. I looked at the property as a long-term investment and have done very well with it.