So I did a 3-2-1 buydown and secured a 2.875% interest loan for the first year of the loan, and it will gradually go up a percent each year until it hits my rate of 5.875%!

Texas does have specific rules regarding home equity loans and cash-out refinancing (often referred to as "Texas Equity Section 50(a)(6)"), but these don’t prohibit homeowners from using funds for investment properties.

During the partnership, you can jointly manage the property, increase its value, negotiate a flexible repayment plan with the seller that allows for larger payments after the property appreciates, ensure a written agreement that clearly specifies repayment terms and timeframes and refinance, and the sellers are able to 1031 at their leisure? 

.- Collect Tax Certificate to verify Property Taxes are Paid- Get a current statement from the seller to verify the existing balance, if they are delinquent, you can get the bank on the phone to verify the amount to make the loan current.- Review the loan documents, there is most likely a due on sale clause, which is why you won't find a title company to process these for you.

If it is someone you know you can give them a straight return as if its a loan - can provide a lower interest rate to provide upside - it really depends on the lender and what are they concerned with and what is their risk profile. 

SubTo is taking over someone elses loan.

And then also do you typically repay each partner their upfront costs from the profits before then distributing profits?

Is the loan assumable? 

They say as I have just seen they will loan money.

Financing OptionsParent Loan Options: Consider home equity loans, investment property mortgages, or co-signing a loan.Tax Implications: Speak with a financial advisor about potential deductions and capital gains.Rental Income Potential: Explore the option of renting out extra rooms to offset costs.5.