What's left after all that is your cash flow.Collecting cash flow to spend is an amateur play.

The ability to turn single-family lots into duplexes or even split lots for separate units can significantly boost rental income and property value.

Ditto, I use PriceLabs for my STRs - here is a nice writeup ...Airbnb Smart Pricing Vs PriceLabs: An In-Depth Comparison For Hosts | Boost Your Short-Term Rentals

@Vinny MuliIf you have equity built up, can you do a cash out refi?

Adding a washer/dryer to a $500,000 two-flat in Rogers Park could allow you to raise rents by $150/month, significantly boosting your ROI.8.

On the RE side - I own/developed 2,000 residential units across the United States focusing on opportunistic residential acquisitions and development, including student housing conversions and luxury multifamily development.On the startup side - it is a third-party guarantor platform that expands your renter pool, increases rents and occupancy, and ultimately boosts your NOI while broadening affordable housing options for renters.

That might include things like adding units, converting commercial space to residential, or finding ways to boost income (like adding parking).The key is recognizing opportunities while walking the property, and that takes experience.

Do you guys use hard money lender for a rehab or use your own cash?   

The last time I checked, they said Airbnb decide this category and I cannot request it. good luck it will be incredible boost. 

I'd also suggest self-managing your first property to maximize cash flow and learn by doing for any future investments.