@Jose Valdez this may sound broad, but study every factor/variable that may have an effect on your investment strategy and specific target market.

I've known about Bigger Pockets for years, but real estate investing never appealed to me for a variety of factors; therefore I never made an account.

In addition, you will have to calculate repair/renovation estimates so that you can factor it into your offer. 

For me, the harsh experience of buying too high and taking a loss has been the main factor in reducing FOMO.

Of course there are a few more factors at play on the lending side, happy to get into some more specifics if you have any questions. 

What upgrades brings a higher appraisal (I know there are other factors like comps).This is for a BRRRR property that's rented but recently acquired and still had halogen bulbs and brass fixtures, just to give an example.

Or if not, how does that factor into the agreement?

@Preston Gealy really depends on many factors, the flip I'm doing now the basment never flooded however is always damp.

You can always raise the rent to factor in the cost of the cable.

If you're a new investor your credit score will be a big factor as well.