I say this because you can better optimize for your space after you've done your research such as buying a sofa bed, to maximize for space in your old home and investing into some key touches such as wallpaper by the headboard of the beds, fresh new sheets, pillows, etc.... again only if the airdna numbers come out making sense.

Assuming your flooring is good a fresh coat of paint may be all you need but if flooring is needed I suggest LVP.

Get rid of all of them and start fresh. 

We (my wife and I) are familiar with the Portland market and have some fresh wounds and sweat from getting a full renovation to go live as a STR if you have any questions.

New 35-years shingle roof, Freshly painted, New Electrical Fixtures, New Kitchen, Update Bathrooms, New Water proof vinyl flooring, new garage door, new AC, Updated Electrical Panel, New Water Heater, Foundation repair, landscaping etc.What was the outcome?

Because of that I'd personally look for a quad that will cash flow purely from LTR rents, then investigate STR potential, so you always LTR as a fall back.

@Maranda Tucker I've done it to get a tenant out of a pretty fresh lease, but it wasn't fun.

Value added by fresh paint and sink hardware.

If the property was already cleared before, it might be worth stopping the investigation.

Be sure to investigate local landlord-tenant laws. 3.