you mention the person who is complaining is now and living in an efficiency unit (to me that has everything in it-ie fridge, stove). 

I  would look at your town regulations and see also if they have any unrelated persons ordinances and what they say about boarding houses. 

We took this approach because even though the house is an STR it is also one we want to use as a family a couple times per year, and we feel we have our own personality as hosts, so we were particular about what we wanted. 

I gave them a lease in person to review and sign (I gave them the lease first as they mostly speak Spanish and the lease is in English, so I wanted to give them the time to read it).

If ists not rented, then we could look at 1 bank statement or p/L loan to qualify.

Unless there is an offer deadline, I personally think order of offers has influence on sellers.

@Braden Heard start farming & growing your personal network to find deals that you can start out wholesaling, then flipping, then buy & hold as rentals to build wealth.Per this NY Times article, the average American knows around 600 people.https://www.nytimes.com/2013/02/19/science/the-average-american-knows-how-many-people.html#:~:text=The%20average%20American%20knows%20about,do%20you%20know%20named%20Kevin%3FPer the US Census Bureau, the average American moves 11.7 time in their life, which based upon an approximate lifespan of 84 years, works out to be about every 7 years.https://www.census.gov/topics/population/migration/guidance/calculating-migration-expectancy.html#:~:text=Using%202007%20ACS%20data%2C%20it,one%20move%20per%20single%20yearSo, if the average American knows 600 people and they each move about every 7 years, that means that the average American knows around 85 people that move in any given year.How many of those moves do you want to be involved in?

They think its a bank!

I'm, personally, an investor in Midwest markets were I can still cash flow immediately.

Have you been going into banks?