My biggest two cents is no one should flip unless they are the best at estimating ARV in their room--better than the appraiser, agent, lender--when that happens, your deals will fall into line. 

It depends on non-SEC 8 market rents for similar properties, the utility estimate for your property, and the tenant's income.

Sure, buyer beware (I'll never buy a home sight unseen again), but terrible deceptive business practices and I can’t get the rent they estimated for this unit with it being only a 1 bedroom without a shower.After the sale, Ready REI was very slow on getting quotes and the few minor repairs done that we had agreed to.

He only gave me an estimate (doesn't show work completed) for $5,000, even though the repairs were stated to cost $15,000, he said he lost other documents, when I ask him to retrieve them or allow me to retrieve them from repair company he won't.

Quote from @Charles Evans: There are websites that estimate market rent, but they can be off quite a bit.

You can use Airdna & other STR estimator tools to get data on potential income/vacancy based on your location and property size. 

Neither outcome is good for you.I give some approximations of each expense category in The Hands-Off Investor, but the best way to nail down operating costs is to look at the property's historical performance.For example, Contract Services and Utilities. 

If it would help to get a more detailed estimate feel free to reach out.Documentation is rather limited, just ID, bank statement, LLC documents to start.Sometimes there are interest-only options at 30 and 40 years, generally the difference in payment fully amortized over I/O is minimal so it may not be worth it.

Quote from @Roger Garner:Multiple estimates and get some photos of their work too.

With investment properties, you can typically borrow up to 75% of the appraised value - significant funds if the $245,000 estimate holds.