My mortgage is about 975 on a 30yr conventional @3.5% - including tax and pmi, and I pay 1000 to put a little extra toward principal.

If i went with a move-in ready duplex, I would essentially live for free (after considering principal and tax write-offs) which is nice but not sure how i would leverage this property for the next deal. i plan on holding the property for the long run. 

Hello,If I own a single family home for my own personal use with PITI = $3000 and if $1000 of PITIgoes into principal payment, is it safe to consider my effective monthly real estate expense is $2000 and the other $1000 as a forced saving?

If the loan amount is under 100k then some banks would not borrow, other would borrow but max repayment period for like 15 years ( that means bigger monthly payment).Also cool think is that sometimes one can choose to not start repayment of the principal for first year, so for first year only pay back the interest.

Additionally, what concerns should I have renting out my current home with a mortgage, e.g. will the lender have a problem if I no longer use it as a principal residence? 

Total Active RE = $30k (you still get back your principal and profit at the sale).Bucket 2: You passively invest $250k across five syndications that average 8% COC.

Plan on 12 months of principal and interest in cash reserves.

With the higher principal and higher interest rate your mortgage payment increases a little over $300/month. 

If you use the personal car, make sure to keep a detailed record so that CPA can prorate the expenses between personal and business.19) Any equipment you rent for the rental business.20) Mortgage interest and property taxes21)There are many others and depend on specific situations.22) home office: Also, If your home qualify for a principal place of business for RE activity, any mileage to any rental property is deductible.23) With house hack, you could potential convert some personal expenses to rental. 

Do I take out the additional money and put it toward the principal of the home equity?