I am not familiar with the current company you are using or any agreements you have with them, but typically if the tenants do not pay you do not get paid. 

My conceptual understanding of seller financing is that you’re essentially the bank collecting mortgage payments from the owner (who maintains - or doesn’t maintain - the property) instead of collecting rent payments from a tenant who lives in your house which you maintain.

One thing that may be good about purchasing a small multi-family to live in and house hack is that you can typically get in with a lower down payment (where as if you wait until it becomes a true investment you wont typically get in for less than 25% down).

I understand that the website does all the calculations for me, but being an engineer I typically learn better through actually messing with equations, seeing where they're derived from and applying them myself.

I mean this because "appreciation markets" are typically more expensive markets.

Essentially using the BRRRR strategy to produce cash that you use to buy more properties.  

Inevitably I find if a client doesnt want to be exclusive...they typically are not doing a lot of business, and therefore do not have a need for multiple avenues for properties to come. 

@Christian Whitehead the lease terms will dictate, so read them carefully...and your state landlord-tenant laws will specify what to do....looks like you have a few city ordinances as well...so review those as well.In general, if they are truly month to month...you, as the property owner can simply elect to not renew the lease...I typically give 30-60 days and if it may turn ugly, offer cash for keys...$500 to the tenant after they are out and the unit is clean.Good luck! 

How do you folks typically approach that in negotiation?

In Texas, it is easier to cash flow positive, so essentially if you buy a property the provides good cash flow but the price of the property stagnates over time, your still able to make a profit due to the positive cash flow.