Currently own one long term buy and hold single family property.

Jose,There are a few ways to answer this question, first if you can buy a Primary home then Yes, $15K is enough. 

When buying a note at a discount (e.g. $100k performing I/O note for $90k), how do you classify the extra principal you get back when the loan matures?

It seems that a great idea for someone who is wanting to buy a Foreclosed property/REO with a VA Loan , is to find those that have the " Renovation Logo " next to them ( those listed on the HomePath website, as this houses have likely been renovated and or had things fixed, that should allow the house to Pass most Lenders guidelines ......

Having a trusted person or family member generally sounds good for starters buy because of that relationship you might get into the issue of late payments.

I generally buy furniture from Wayfair Pro if I'm on a budget or through Host GPO.

Investment Info:Small multi-family (2-4 units) buy & hold investment.

I'm a boston-based investor,  looking to buy a multi-family unit and plan to use my residence unit as a STR. 

Buying at the right time in the POPs, when the neighborhoods are still rough, will give you outsized appreciation.

I only recommend using a HELOC for scenarios where you'd be able to pay it back within a year.Alternatively, you can just buy another investment property with lower down payment, which is a better interest rate than anything you'll get on a 2nd lien HELOC/HELOAN.