It does take some training to become proficient but seems to be the most widely accepted.

What if you accept the Airbnb booking and then they refuse to sign the lease?

Run owner reports.After testing a few apps, one of them should stand out for you.

If they accept the rent, the case worker will send it to the inspection department for scheduling. 

Hey BP family,I am new to real estate investing but would love some experts insights so I don't get burned on my first dealThis is the property: https://www.zillow.com/homedetails/724-N-22nd-Ave-Bozeman-MT...My thoughts are my wife, 8 month old and I could live in Unit A for a year or two while we rent out Units B & C to help cover the mortgage payments until we build/buy a more desirable family ranch home with min 10+ acres which we've been looking for but have yet to find.My hesitation is I've never been a landlord and am reluctant to get in over my head with property problems while simultaneously growing an online business and being a new father.After some negotiation we counter offered 895k with a 2-1 rate buy down for 20k and the sellers have verbally accepted but since our offer expired we need to resubmit.

Seller finance deals work when one of the following situations is present1- property can’t be financed with institutional financing usually because property is vacant (commercial property) or in bad condition2- seller will only accept an above market price for the property and by offering seller financing opens the universe of potential buyers to include people who wouldn’t qualify for financing3- seller is able to obtain a “piece of the action” from a buyer rehabbing the property and hence ultimately obtain a higher price.4- the seller has an existing low interest rate mortgage and wants to “wrap” the existing mortgage into a seller financed higher rate mortgage and pocket the differential 5- property is an investment property, seller has a low basis in the property because of depreciation, and wants to spread out the taxes due.Are you thinking of trying to purchase with 100% seller financing, or are you able to /willing to offer a down payment of say 10-20% .  

on the other hand, ask them to allow you to test and clean rather than them give a hearsay appear and disappear story.

Here you should get your agent to spell out what is covered on one of these forms to see if it is acceptable to you. 

Quote from @David Pulido: Talk to a few lenders to confirm, but I'm pretty sure lenders are forbidden from paying or accepting referral fees.

Short answer: STR and REPS are TWO DIFFERENT tests, unrelated to one another.