It doesn't make sense for an individual investor to buy  single large box tenant for a really high price.

There was already a lot of supply in the first place, but now your 2 bed apartment has to compete with these large buildings trying to fill vacancies literally offering 2 months free rent in some cases.

Also check local news papers TV for large companies moving to the area.

I'll preface by saying I'm not a tax expert, but just went through a cost segregation as a REPS and this was my view.The benefit from pulling out these items coupled with the bonus depreciation far outweighs any incrementally higher taxes in later years, by quite a large margin. 

But if the market for large STRs is thin, the basement might not add substantial value.Selling: Selling could free up cash for other investments with better returns, especially if you’re uncomfortable with the low ROI and management required for STR.It’s a tough call, but if STR potential is there, it might be worth a trial period to see actual cash flow before committing fully to the basement investment.

Depending on how much you borrowed, you may need to walk into closing on a DSCR with a fairly large check to pay fees and any shortfall in DSCR loan.  

BP is so large now, unfortunately, there are a lot of "professionals" advertising their services here but don't know the REI industry.So, to protect yourself in the future, I'd ensure at least a few other REIs have worked with the professional you choose to hire and have received enough value from them to refer their services.You can always ask the professional for references as well and they should have no problem providing a few if they are good at what they do.Just my 2 cents.

A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant who specializes in real estate taxation and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

This often only works with large properties where you are raising north of $1mm in equity, otherwise the legal fees eat up too much of the overall deal to make it worthwhile for anyone.  

That is, @Bill B. is correct.While true that it’s harder to find P/HMLs willing to lend in second position than first, it’s also true that many of these will only lend behind a large conventional lender, such as a bank.