If you allow service dog, you sure need to pay a deposit , application fee and monthly pet rent correct?

@Charles Perkins is absolutely correct about "collecting all receipts, properly tracking all income and expenses and your basis for all assets properly documented and recorded."

If the $700K sales price is not used correctly to acquire qualified real estate, the exchange could fail, triggering tax liability.Future exchanges will depend on the total value of the replacement property acquired, so entering syndications could limit flexibility.

Just make sure the bed/bath count is correct as it can affect the income drastically 

Correct me if I am wrong.TIA

If I understand correctly your siblings goals are to sell their rental properties, use the funds to purchase a primary residence they'll eventually move into, and limit their tax liability correct?

HI, 
Is opening a LOC on my primary a good option to fund flips or is there a better solution to get the funding? There's no charge to me to get these funds except a yearly fee of 200.00. 

Thank you 

Correct.

So if I understand this correctly, by qualifying to extend the 5 year rule to 10 yrs, $250k if single or $500k if married of proceeds from this sale would be exempt from capital gains? 

You are correct that it can be called but you are also usually given the option on either adding to the account or selecting what to sell.