Loan interest is deductible based on the use of the loan, not the asset securing the loan. 

The more rehabs you do the better understanding you will have of the market for contacting work and materials.Doing a rehab every so often prevents you from being sharp with your budget.For those with limited exposure, ask others in the industry and always run your numbers based on being overbudget and overtime. 

Talk to a CPA for advice based on your goals.Reinvestment: Instead of paying off properties quickly, reinvest your cash flow into more properties to grow your portfolio faster.Rent Increase: Look for opportunities to increase rents or add value to your current property to boost cash flow.Consider focusing on multi-family properties for better passive income.

Is any bank offering a HELOC based on the combined equity?

Ownership and profit-sharing can be split based on contributions, with you possibly earning equity through sweat equity.

DSCR loans are based off of down payment, credit score and either actual or market rents so it helps to supercharge an investor's real estate goals and net worth.

@Tove Fox - Residential Real Estate InvestingPros:Lower Entry Costs: Easier to get started with less capital required.High Demand: People always need homes, making demand relatively stable.Easier Financing: Mortgages are generally easier to secure with favorable terms.Simplicity: Easier to understand and manage, especially for beginners.Flexibility: You can use it as a personal residence or rent it out.Cons:Tenant Turnover: More frequent turnover leads to vacancy and more management.Lower Cash Flow: Income potential can be modest compared to commercial properties.Emotional Buyers: Residential prices can be influenced by emotions, leading to price volatility.Maintenance Burden: Landlords often deal with repairs and maintenance, which can be time-consuming.Commercial Real Estate InvestingPros:Higher Income Potential: Stronger cash flow and higher returns are common.Long-Term Leases: Tenants often sign longer leases (3-10 years), reducing vacancy risk.Professional Tenants: Business tenants tend to take better care of the property.Valuation Based on Income: Prices are based on the income the property generates, not market emotions.Shared Costs: Tenants often cover property expenses like taxes, insurance, and maintenance (via triple-net leases).Cons:High Entry Costs: Requires more capital or partnerships to get started.Complex Management: More expertise is needed; you may need a professional property manager.Economic Sensitivity: Commercial properties are more sensitive to economic conditions.Challenging Financing: Securing financing can be harder, with stricter terms and higher interest rates.Zoning and Legalities: More complex regulations compared to residential properties.Key Differences:Risk: Residential tends to be lower risk, while commercial offers higher rewards but with greater risk.Management: Residential is easier for DIY investors, while commercial properties usually require a team.Scalability: Commercial properties are easier to scale, offering more potential for significant cash flow increases.

Yeah, under any other circumstances, I'd suspect that, but I'm certain based on past communication that they are simply no longer responding.

These are natural food for Tilapia. 

The GC should help you determine the scope of work and provide a list of materials based on your goals (e.g., rental vs. flip) and the property's target market.