A lot of the answer depends on your income, how long it took you to save up that money, and what your risk tolerance is.
For my answer, I'll assume it took years to save up the $80k, income is "normal" (meaning you are not making $500k+/yr), and you are moderately risk adverse.
If those are correct, then first off I would not spend all the money. Keep some as reserves. I'd spend maybe ~$60k of that money. I would buy a turnkey 2-4 unit property in a well known mid to large city. The property would be in a C+ to B- type location, with cash flow as the main objective and appreciation second (75/25 split). Purchase price up to $300k.
That way you will have a property that produces passive cash flow every month and appreciates slowly and steadily over time. Risk is minimized due to the amount of rents, property condition, property price, and location. Also you spread out your risk over multiple units, so if you get a vacancy, you still have money coming in (vs a SFR - no tenant = no money).
Let that cash flow build up (don't spend it - put it all into a separate savings acct), keep saving (do whatever you did to get the $80k) and when you have enough money saved up again, buy another one. This time, I would consider increasing your risk a bit now that you have the first one out of the way. I would buy a similar property, but buy one that needs a bit of work. That way you can renovate it after closing and gain some additional equity. Stabilize the property, wait a year or two for some appreciation, and then refinance - pull that equity out, and then do it again. And again, and again. Fast forward 20 years when you are 60 and you have a multi-million dollar real estate portfolio that should be generating a solid amount of passive income.