You can expect turnover costs, losses due to vacancies, and other expenses.

There are a lot of affordable properties in Knoxville, but the growth isn't terribly vibrant and the deman isn't what you'd expect for a city of that size and that close to the Smokies - you're mostly looking at college rentals for the meat of the move season, and the SF market, while it exists, doesn't really compare to Chattanooga. 

Here’s what to expect in the application process: 1.

Since you won't be able to recognize it as a valid rental if you're charging under market rent and you also expect to be covering any house expenses that are outside of her budget, this seems the best choice. 

But that’s how I would expect it to play out. 

@Ming HuangRecommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Please advise on what to expect what to do?

I work with a lot of househackers and they're typically on the 12 month cycle, rinse and repeat.While the proposition of acquiring an investment property outside of your market in a "landlord friendly" state may sound appealing, i would recommend you stay local for now and househack another couple of properties over the next few years until you've got some more time / experience under your belt.you would need a management company to cover your property that is outside of your market which would not only take 8-10% of your gross it would also leave you a bit vulnerable to a property management company that you A.)know nothing about and B.)you won't have the experience or cashflow or proximity to deal with any headaches that may arise.i would recommend staying local and househacking your way along for now and then maybe hire a local property management company initially to work with your current/local properties to get a taste of what to expect if and when you begin investing outside of your market.

If you walked into a bank, your pre-approval would likely never qualify for a house hack duplex.Did they count 75% of the expected rent towards your DTI? 

Most of our out of state investors in Pittsburgh find success depending on their expectations.