As Long as your not overpaying for it. Your ok. Buying rental properties, your main goal is to get the most cash flow you can. The questions you should be asking. What's the cash on cash return and or CAP rate. If it cash flows. Just like any business. It's a good thing. The value of the homes may go soon but that shouldn't matter. Cash flow. Cash flow. Cash flow.
There are some other factors if you want to get technical like neighborhood, schools, types of tenants, the local job market. Etc...but the cash flow is one of the top 3 things you should be focusing on. If your new I wouldn’t recommend going into the rougher neighborhoods just because you can get section 8 and it pays more. There are trade offs with section 8 and that varies not just by the city your investing in but it’s neighborhood and the block and it’s radius your looking to buy.
Lastly, did you also factor in garbage and water? Landlord has to usually pay those as well. I personally would find another way to do the deal instead of doing it that way.