They started the business from scratch in 2003 with a combination of wholesaling, fix-and-flips, and non-conventional financing sources like private lending, seller financing, and lease options—which remains their expertise today.If you had one question for a professional real estate investor who retired themselves by 37, what would it be??

When you have unscheduled entry as an option, I think it encourages them to do weird stuff like hide stuff in weird spots, etc because they are always on guard.Hoarders clauses would have to be linked to fire codes I think for excess people and materials near fire sources, etc.

Deal sourcing- if you’re willing to search regionally, don’t ask anyone to sell that isn’t already in a sale mode. “ No marketing.”

But I'm almost exclusively sourcing them off-market.

Note: This all pertains to the 2022 tax year and I still have a W-2 job which is the main source of my income.Given I've only owned a rental for one year (also my first home ever) and I'm very new to rental-related taxes, I of course hired a "good" tax advisor/CPA to help ensure I stay out of trouble with the IRS.

And if you already found some other sources if you could let me know how you found them.

@Philip JonesYes, it can be a source of frustration and a complete time suck but you may find a deal.  

But 3) Try multifamily specific brokers, crexi and loopnet, although 2-4 units maybe scarce. 4) A home equity line of credit is a good source of funds however it will generally make your overall monthly payments higher, so unless a deal is very solidly cashflowing, a HELOC may put you into negative cashflow. 7) Typically electric/gas are paid by the tenant - however this isn't true across the board. 

A good broker maintains relationships with various funding sources, including individual investors, investment groups, and financial institutions.

My team on the ground there handles everything from sourcing deals to renovation, and we've worked with hundreds of investors each year to make these properties cash flow.We’ve built up some solid relationships in Detroit—whether it’s general contractors, agents, or property managers who understand the ins and outs of Section 8.