I'm loving the BRRRR method, and I think this is definitely the way to go to minimize risk, start with low to no money down, and grow rapidly.That said, I'm finding it difficult to find out around how much you should put down with private money up-front? 

I am currently in property management for my occupation but I hope to someday go prom property manager to property owner through the BRRRR method, but that takes both money and skill to get great deals. as I am low on both, I was thinking of one of the best ways to increase my skills and earn a little money to save up for my own ventures would be wholesaling.what are your thoughts?

I'm a newbie looking at house hacking and currently got conditionally approved to purchase a 350K 4plex in the state of Texas .However, the loan officer wants me to write a letter of explanation, apparently to be sent to the underwrites concerning my work history.

The taxes are a concern. 

You can ask a family member for a loan, but some lenders will require that amount to be sourced once they see a large deposit in your bank statements.By the way, if you're ever planning to keep a property (i.e. the BRRRR method), always get pre-qualified with a conventional lender first to make sure that you actually can do the refi, otherwise you'll be stuck in a hard money loan. 

The other reason is that it makes it a little easier to self manage......as far as the tenant is concerned, I'm the manager and a company owns the property. 

Main difference being the length of time for each step, costs, method of valuation, and inconsistency across lenders.Many lenders won't let you pull all equity out though, YMMV.

The numbers currently make sense but we are concerned with the potential Health risks as well as how this could effect us being able to rent the units in the future or selling  the property a few years down the road.

I much prefer a lower cap rate in California knowing there is a high likelihood of long term rent growth and capital appreciation vs. concerning myself with a higher initial cap rate in the midwest but on an asset where rent grow is small and an asset that is deteriorating. 

The biggest concern I have is that most individuals in my network will not be able to cover the whole $100K purchase......and I wonder about having 3-4-5 private loans and the costs/hassles associated with that.  4th lien position?