I've always been learning about medicine and instructing, as of summer 2018 I applied the concept of "that which I do not understand is exactly what I should be learning." 

Sewer charges (the most expensive part of the bill...often 3-4x the water bills) are applied to the tax bill the following year. 

@Eric B. 10% is a little extreme, that’s probably atypical but in this case the rent was $2,000/mo, there were over 30 qualified applicants that applied, and rents had gone up 10% in the area the previous year, so the big increase was a function of supply and demand.

Maybe look into the BRRRR method a bit more and see if you can apply those concepts to this property. 

I am wondering if I asked our loan officer for the new interest rate since we haven't technically completely signed and put our 20% down, would that a be a complicated process of having to apply all over again?

I budgeted $40/mo because my hope was to get 1 of the tenants to do it and apply that credit to their rent as our PM has done that with other multi's in the past.

They only know that you are applying for a primary residence and that you are married based on the application.

Leave them on the original lease as M2M and just apply the annual rent increases as normal.All my tennats are M2M.

Sorry IDK why, but I never got a notification about your post...Our timing was terrible as we wrapped up in the holidays (note to self lol), and traffic has been slow, but those that have applied have been really interested and with one exception, pretty good quality renters.I'm still looking for renters for 1 of the 3 (and one has a short term renter till summer). 

You mentioned wanting to house hack so i think this might apply for you. do some research on your particular state but i know that in my state i can purchase a multifamily home with a FHB program as long as it doesn't have over 4 units and i live in one of them.