I want to understand how to structure the finance terms.if for example the house is on the market  for $200K1. how much do i ask for down payment2 going interest rate?

People were talking about how real estate agents can't find off market deals@Bill Gulley said it.

In regards to your markets you mentioned, TX is likely going to be a better market for appreciation than OH. 

the reality is BANKS left the fix and flip market after the GFC.. very few will do them unless your a premier client of theirs with a  long track record and they are doing them as a service to you. 

I have found very little deals thru an actual wholesalerRe read what @Thomas S. wrote If you don't take the time to educate yourself, create your own business plan,and know the metrics of buying selling rehabbing wholesaling,marketing ,etc you will just be throwing money away like the hundreds of newbies flocking into the business 

I like SFHs because in some of my markets they have a huge potential for upside and appreciation.

I'm now in the market for an income property or two!

There's a company called PadSplit in our market that helps with this too.

I would not recommend BRRR until you have lived here a while and adjusted to life here and  made some connections while paying attention to what the market is doing, what is considered a good location and where the gaps are.

That should take the most time - determining a realistic ARV and market rent should be the work of just a day or two.If the numbers all work and you've satisfied yourself with the neighborhood, it's time to put one foot in front of the other by making an offer.