After moving out I was able to cashflow ~$1,000/month but ended up refinancing and getting all my money out of it, still cash-flowing $450/month, and using the money to buy me another rental property.

Having good processes in place is particularly important for tenant screening, move-ins and move-outs and the handling of security deposits, but I don't know how you can have processes to guard against criminals and unfair government policies like those in place in some areas during the pandemic.

After moving out I was able to cashflow ~$1,000 a month but ended up refinancing and getting all my money out of it.

I moved to Knoxville and was looking for a house hack.

Does it make sense to invest in say a 350k property that will cost me 200-300 a month to operate even after I move out if its in a good neighborhood? 

Some loan options are:If you're looking to buy a property that's not move-in ready: You can get a fix and flip loan for an investment property with up to 90% of the purchase price and 100% of the rehab budget with up to 75% of the ARV.

I am actually moving out of my house this weekend, then I was planning to do a long term rental but maybe STR would be more cash flow?

I plan on using a property management company in order to keep the property in order until I move (eventually I want to bring property managers under my own business entity to focus only on my properties). 

There are more moving parts between cleanings, reviews, keeping inventory of a furnished place, bookings, new people every few days, people not understanding the difference between an airbnb and hotel etc.

I moved to Knoxville and was looking for a house hack.