Obviously many costs are unexpected and can be difficult to quantify. 

Wholesaling is difficult and networking plays a huge part.

Awesome episode; top ten in my opinion.One quote Rock said really stood out, "In life, if you do what is difficult, life will be easy.

When buying a primary residence, there is no limit of financed properties with many lenders, although some are still going to have overlays and limitations.On your second question yes, you can always pay your loan off with cash, or pay down your balance, and later refinance. 

Every month I carry cash to my bank branch to pay down the balance of my mortgage, I've been doing it in the last 6 months, because I happened to have cash.I know if I do the same thing to my checking account, it could be flagged to the IRS as "structuring" or "smurfing", but does that apply to mortgage too?

Purchase Price: $49,500 (Current 15 yr Loan Balance $35K ---- $435 per month PITI)Current Value: $130,000Rent: $925Our initial strategy was long term buy and hold.

Buying one is incredibly difficult. 

If they are dealing with a difficult 24 unit that only rents for $800/month/unit, that is a lot of work for the headache.

@Shreyas Kalaria its extremely difficult to purchase property in another area unless you can manage the project yourself.

Good news part: My current interest rate is a VA loan with 3.25% on $405,000  balance & my property recently appraised in the $1.1 million range (really good part)Seeking the HOW!