you are going up against people and companies that spend thousands or even tens of thousands of dollars a month in marketing. 

If i sell my SFR rental for $450k and equity is, for example, $200k...Can i invest 100k into a new SFR worth $275k and invest the remaining 100k into a sponsored DST or TIC (which deals are usually multiple hundreds of thousands of dollars?

Some of those facebook groups have thousands of members.

They have cost my business tens of thousands of dollars and countless wasted hours of follow ups and missed opportunities.

Hosts lost tens of thousands of dollars.

Key provisions like bonus depreciation, the 20% pass-through deduction, and 1031 exchanges have saved investors thousands of dollars each year.

This is defined as 30 days or more, and you will easily find nurses, professors, students, and more than need a 1-3 month airbnb.Speaking of, you could rent the whole space mid-term - and I suggest through airbnb or VRBO but you don't have to use those.

Right after I closed on that one the insurance company demanded I make a couple thousand dollars of repairs.

Dr's, Nurses, Electricians, heavy equipment operators etc etc.. 

This is much lower than the costs associated with refinancing.Benefits of Mortgage RecastingLower Monthly Payments: The most immediate benefit is a reduced monthly payment, which can free up cash for other financial goals.Save on Interest: By reducing your principal balance, you’ll pay less interest over the life of the loan, potentially saving thousands of dollars.No Credit Check or Appraisal: Unlike refinancing, recasting doesn’t require a credit check, income verification, or home appraisal, making it a quicker and simpler process.Keep Your Current Interest Rate: If you have a favorable interest rate on your current loan, recasting allows you to maintain it while still lowering your payments.Drawbacks of Mortgage RecastingRequires a Lump Sum: Not everyone has the cash on hand to make a significant lump sum payment, which can make recasting inaccessible for some homeowners.Doesn’t Shorten Loan Term: While your monthly payments are lower, recasting doesn’t reduce the length of your loan.