I went ahead and estimated my taxes based on my assumption, paid more taxes, and filed an extension. 

Also when on the phone with a seller, how do you quickly come up with an estimate for their property- I know you definitely don't want to tell them you'll give them a callback, you want to give them something to think on while you come back with the Maximum Allowable Offer. 

Also when on the phone with a seller, how do you quickly come up with an estimate for their property- I know you definitely don't want to tell them you'll give them a callback, you want to give them something to think on while you come back with the Maximum Allowable Offer.

I'd overlay without an exigent circumstance, don't think the estimated life is different enough to justify higher cost.

Our original construction contract had an estimated finish date with the majority of work being completed by 12/31/20.

After I rent the whole house out, my property manager estimates about $2400 in rent (conservative).

I'd recommend getting your numbers estimated the best you can and then present them here on BP and find lenders that way too.

BiggerPockets does have a free rent estimator for u; to eight times.

Not enough here to tell for sure.Perhaps your estimate of $300k was off?

Or, are you talking about estimating rehab cost for your own real estate investing?