@John Leavelle Thank you for taking the time to explain that to me. I have been questioning the plan myself, as it seems like a gamble hoping the ARV is appraised to my liking (or my numbers' liking). Especially as a newbie, I don't trust my own opinions about rough repair estimates and ARVs.
I have been practicing running the numbers on properties I find, but I have no idea how to estimate ARV. And the ARV is obviously quite a crucial part in achieving 70 or 75% LTV.
Aside from the BRRRR strategy, I have been running the numbers as if I were paying market value rent, to more accurately predict cash flow after I move out. I also plan on "paying myself" that rent every month as if I were a normal tenant, simply to get accustomed to the accounting/ managing of the numbers.
I do realize that I may have to live in my first property for a couple years, whether it is to pay down the mortgage to achieve 75% LTV, to acquire more savings from my full time job, or both. Whatever my situation is down the road, I want to be in the best position I could be.
Would you suggest looking for turn key properties for my house hack? It seems most multifamilies in my area can only cash flow under 120k, any higher and the rents need to be too high. That is why I wanted to 203k a ratty property. Perhaps this issue is more common than I think, but I am not sure. Any advice is appreciated.