But I would not, not use them just because people responding to this post have not heard of this specific lender. 

Focus on building strong systems, leveraging technology, and networking with the right people, and you’ll be off to a strong start.

People don't walk in and say "I need you to prescribe me X" without the physician asking a lot of questions, drawing blood, and doing other tests.

We are currently starting to do flips to fund our STR acquisitions, are people typically buying properties through wholesale or using a realtor?

Unfortunately, this model got way out of hand in the late 2010s and 2020/2021.

I've seen things like young kids hanging out there and even people using it as a dump zone.What are my options with this property next door?

Think about it, you could spend the next year or 2 living with your parents (which I think was absolutely a smart move, btw) and just saving money...not achieving either of your goals of owning or buying a home for your wife & family...AND, not to mention that if you do purchase your primary residence first you're going to increase your DTR & likely significantly reduce your cash on hand, which is likely going to set you back a few years on your real estate investment journey.

Maybe people are doing a little of both.

Furnish finder is for mid-term rentals and even with that, hosts are finding Airbnb does better at bring people in to stay for few months. 

RUBS seems like another easy idea that we'd have to calculate monthly, costs me nothing, and does a fair division of the bill based on the number of people per unit.