For 'smaller' amounts of under $100k many will even do an automated online appraisal and employment check, instant issuance and funding in five or so days. 

He is reluctant to accept my all-cash offer, which he believes is very low.

You don't want everything to pass to them when they turn 18, however, you do want them to be able to access funds for education or professional use.

I purchased them several years prior to Covid at a very low price compared to today's market. 

This is especially true for loans with low down payments, like FHA loans with a 3.5% down payment.- The realtor: like the seller, realtors do not typically need to know your house hacking plans.

., stocks or mutual funds) that are operating at a loss, if you liquidate those investments to take a loss, you can use those losses to offset your capital gains.

We are probably going to use them for our next funding deal.

Well, I am in the Tampa Florida area but the rehab amount for something like that seems low. 

Also, YouTube is a great resource (treat it like google).How should I fund the renovation of the current standing building, Since the building was tied into the purchase of my home is there a way to parcel out that property and then request finance on it?

Just be aware of the rules wrt rehabbing since some require you to escrow funds for the rehab amount (that is if you are doing rehabs).