Personally, I think it will just lead to a hassle down the road, and landlord/tenant relationships should (in my opinion) always be nothing but business. 

“Ultimately, Zillow Instant Offers has the potential to deliver the highest intent, highest quality listing leads at scale to our Premier Agents.” - https://www.geekwire.com/2018/zillow-group-will-st...KH

I understand why they think that given the pod casts  late night TV etc etc. but reality check is this is a capital intensive business.. and undercapitalized business fail most times.Americans specifically have a very tough time managing personal debt.. and some of it is certainly regional..

As mentioned before you can do a cash out refinance or HELOC, but you might also explore what would be possible in obtaining new properties without going into debt on current properties.

In wholesaling, if a real estate agent gives you a lead on a house and you end up putting it under contract and successfully assigning it to an end buyer, is it legal to give the real estate agent a percentage of the assignment fee?

If your plan of flipping homes leads you to your "Critical Mass" point, then by all means execute on your vision vigorously. 

Reduce consumer debt, increase your income, and buy fantastic deals that cash flow.

This should save me money on my own future deals, while also helping me gain credibility within the industry and my local area as a serious real estate investor and deal maker.As for my professional background, I have been working as a freelance social media marketing strategist for 7+ years helping B2B companies generate and nurture high-quality leads on LinkedIn.

The increased crime leads to increased costs with maintenance as well as increased turnover (from lesser quality tenants as well as higher quality tenants that will move out).

Third, you have several options: a) you can consider syndication but it's a bit small for that; b) think about potentially JV'ing with someone who can bring capital; 3) find a debt partner(s) - just pay a private lender a set interest.