I don't have the cash required, so I'd have to finance.

I'd love to hear what decision you are leaning toward or have made in the last 12 months with this question in mind.

If she just moved in, I'd tell her clearly this isn't going to work out (you can mention quiet enjoyment and her being loud at 2 am, but I'd leave other parts suck as her choice for lifestyle out of it-ie having 3 different guys spend the night) and remind her of the lease.

I’d like to connect with investors to show the potential of putting homes on land to flip instead of the traditional house flipping strategy.

Yeah I’d like to read that statute if someone has a link.  

At this point, I'd recommend studying your competition (what are they offering that you're not?)

You can go to the City to confirm but I'd assume the  architect is correct with the timeline and potential costs. 70k for windows and doors sounds like more than enough.

I'd love to source your next deal.

If you're not currently listening to books educating yourself, I'd start today.A few I'd highly recommend...Buy, Rehab, Rent, Refinance, Repeat - The BRRRR Rental Property Investment Strategy Made SimpleFLIP - How to Find, Fix, and Sell Houses for ProfitThe Book on Flipping Houses How to Buy, Rehab, and Resell Residential PropertiesThis book is not currently available on Audible but a must readThe Book on Estimating Rehab Costs - J Scott

Since you often don't get the first month's rent until the second month, along with the second month's rent; although sometimes you get it half way thru the first month.