Rent growth has a larger impact on long term cash flow then initial cash flow.I am confident that on a 10 year hold, the higher cost market BRRRR in most markets will out perform the lower cost market BRRRR. 

as a flipper, with the participation of a wholesaler and a hard money lender, what actions should I take BEFORE I close and buy a house (tell me step by step please because i dont really understand the sequence of events) and also please tell me when to do due diligence to make sure how much does it cost to renovate the house and is it worth buying this house?

I renovated it down to the studs.

Whether it’s sprucing up a property with a few renovations or doing a full-scale flip, a good contractor can make all the difference.

It's was so easy for me getting started to get shiny object sindrome instead of locking in ONE STRATEGY, ONE NEIGHBORHOOD, ONE PROPERTY TYPE, ONE RENOVATION TYPE, etc. 

Honestly, I think this might be more symptomatic of larger issues in the real estate world in general.

@Derick JenningsRecommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Renovating usually means you need money to renovate.

Offering a streamlined process, no repairs or renovations prior to selling, no market costs or agents fees for my family member, in return I will gain invaluable experience in the market and in the field along with providing my family with wholesale services.

It's mostly Class A properties, a few Class B.You may find the below copy & paste info useful in addressing your question:----------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?