Hopefully your rent will cover all the rental home expenses and pay the heloc mortgage.

But from talking to some of these owners, I know rent is pretty significant

My family owns a plot of land with a rental house (that my brother rents out).

Then I brought with left over cash a long desired 2nd home overseas, which we will use 4 months and mid term rent the other months.

Venue is rented out for mostly weddings.

Im thinking of renting out my primary which will cashflow $650 (no management fee, self manage) because of low interest rate i got it for 2% which still has 2 years before rates renew. 

It will rent for $1200 and the ARV is approx $140K (BRRRR anyone).As @Sara Smalls stated, you have to be consistent and intentional with the calling.

Buying a four-bedroom home and renting out the three rooms while living in the fourth is considered house hacking.

I've been renting it to the same tenant almost 4 years now. 

For a $300,000 property, this could be $6,000 to $15,000.Mortgage on Rental Property:Loan Amount: $240,000 (assuming 80% financed at 4% interest over 30 years).Monthly Payment: Approximately $1,145.Other Expenses:Property Taxes: Estimated at 1.5% of property value annually ($4,500).Insurance: Estimated at $1,500 annually.Maintenance: Estimated at 1% of property value annually ($3,000).Property Management Fees: Assuming 10% of monthly rental income ($2,400 annually if rent is $2,000 per month).Vacancy and Turnover Costs: Estimated at 5% of annual rental income ($1,200).Total Initial Investment and Annual Operating ExpensesInitial Investment:Total Borrowed from Equity: $150,000Down Payment for Rental Property: $60,000Closing Costs for Rental Property: $10,500 (average)Total Initial Cash Outlay: $70,500 (initial investment from equity) + $10,500 (closing costs)Annual Operating Expenses:Property Taxes: $4,500Insurance: $1,500Maintenance: $3,000Property Management Fees: $2,400Vacancy and Turnover Costs: $1,200Total Operating Expenses: $12,600 annuallyExpected ReturnRental Income:Assuming $2,000 per month, annual rental income = $24,000.Net Operating Income (NOI):Annual Rental Income: $24,000Minus Annual Operating Expenses: $12,600NOI: $11,400Debt Service:Mortgage Payment on Rental Property: $1,145 per month, $13,740 annually.Total Debt Service: $13,740 (rental property) + $8,592 (equity loan) = $22,332 annually.Net Cash Flow:NOI: $11,400Minus Debt Service: $22,332Net Cash Flow: -$10,932 annually (negative cash flow initially due to high debt service).Cash-on-Cash ReturnInitial Cash Investment: $70,500Net Cash Flow (first year): -$10,932Cash-on-Cash Return: Not applicable initially due to negative cash flow.Long-Term Appreciation and AdjustmentsProperty Appreciation:Assuming a 3% annual appreciation, the property value could increase by $9,000 annually.Rent Increases:Assuming a 2% annual rent increase, rental income will rise, improving cash flow over time.