My interests includes but is not limited to co-listing Airbnb, short term, medium term or long term rental properties just to include a few.

I know of no RE investor that had RE before the crash that did not exit that would agree with your statement including this investor.  

That does not include any expenses, vacancy, etc.similar rent minus PITI does not equal cash flow.  

Alternatively, your sibling might use a 1031 exchange to defer taxes by reinvesting in like-kind properties, though this doesn't directly fund a primary residence.Other ideas include leveraging a HELOC on the rental properties for the down payment, taking out a 401(k) loan, structuring an owner-financed agreement, or a lease-to-own arrangement.

General Partner is elderly fatherb.  12 Limited partners - all children , spouses not included - cheaper by the dozenc.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

I am being told by these lenders that I need two years of rental income included in tax returns for them to not use 75% of the rental income per the lease.Essentially no other debt that could help reduce the DTI.

Mostly a single ADU added in a single family zone area will add less value than the cost of the hands on addition.Depending on the financing my underwriting with a high LTV (80% LTV) for $200k would be cash neutral at a rent point at about $2200 when allocating for all expenses without including any land value.  

Also, from what I read in Bloomberg, midterm rentals near major hospitals can sometime command a decent premium.. especially if they include some nice furnishings.Little Tweaks Count: Even minor upgrades, like new door locks or a fresh coat of paint, can help you justify a stronger rent.Driving for Dollars & Networking..

Pairing that with relationship-building will help you uncover off-market opportunities and find local experts who can guide you.For meetups, here are a few ideas:Indianapolis Real Estate Investors Association (Indy REIA): They have a mix of virtual and in-person events and are a good starting point for networking with other investors in the Indy market.Louisville Real Estate Investors Group (REIG): A similar organization for the Louisville market, with educational and networking opportunities.Check out BiggerPockets Meetups: Many cities have local meetups organized by investors active on BiggerPockets, and they often include virtual options.Facebook Groups: Look for local investing groups like "Indianapolis Real Estate Investors" or "Louisville REI."