@Julia Bykhovskaia That is a great idea. I have a duplex that I Airbnb and the only true issue between guests are the noise the other guests are making.
For myself, short-term rentals have yielded better financial returns than single-family rentals from my duplex, however it is much more labor intensive. One thing a person should consider before making the decision is that once you convert your multi-family unit to an Airbnb property you now have to pay for things you could normally have your tenants pay for. Such as: lawn care services, televisions, furniture, decor, utilities, wifi, cable, cleaning services, towels, bedding, cutlery, cookware, refreshments, keyless entry locks, etc.
I think it just depends on your market. For some markets I think to Airbnb your multi-family units will yield greater return after expenses, but for some it may not. I strongly recommend including all the above in your expense calculations. If you spend an initial $5,000/each unit on furniture and decor and $500 a month for each unit in utility, supplies and cleaning expenses...the additional earnings a month from Airbnb versus single-family rental may not yield a greater return. Its all in the numbers for me.