Save yourself the hassle of evaluating any property before you seek your money. Go to a lender and find out what the maximum is for which you qualify. They will tell you the "rules" of 75% LTV or other etc. Personally, I use a tweaked DSCR ratio that I am comfortable with; it differs from the one you have because my eval is different. I am pretty conservative. Also, I don't really "get into" the weeds based on property value, as I want each property to cash flow more than anything. Appreciation is a given unless the trend is declining in the area.
So considering what I see here. Purchase price of $85,000; 15% down. Bankrate calc @ 6.39% = $598 per mo (PITI+PMI), so $598 * DSCR of 1.25 = $747.50 would be the minimum rent I need to charge for everything to work out and "get by" to cover the debt and have a couple of bucks for vacancy and cap ex. Average weekly wages, https://www.bls.gov/regions/so..., would be 3x rent or more, so that is helpful. Personally, I like a DSCR of say 1.5. That would be a rent of $897. Since you are inheriting a tenant above that rent already, then it would seemingly be a good buy, if the actual financials show that this was the amount actually collected for rent all year. The cost to get into the property would probably be higher closing costs than you have here as it is based on credit, PMI prepaid rate, hidden loan fees, origination, rate paydown fees, etc. The next questions would be, is that rent sustainable for the neighborhood? Also, does it need any repair now? And do you have reserves to cover, if the tenant stops paying?