That being said there is no new law(s) that are restricting business owners who can verify income a loan. 

COVID-19 restrictions resulted in a cancelled closing and financing contract until further notice.

With condos, the boards can also change the rules and restrict the number of rental units.

I haven't personally invested in NY, but I would imagine the taxes and restrictions would be in your favor more so in FL than NY.

With the pandemic, many banks will be tightening their restrictions. 

Are there any regulations or restrictions? 

To echo the voices above, I do have concerns with the current market with the government imposed restrictions as well as the market being way overpriced.

It seems to me your worried about getting power to the house to perform the renovations that are needed....if that's the case I'd suggest calling the power company and having them do a visit and see if they can set you up a temp line to work off of.... which you'll need to do anyway being that the house was built in the 1800's and more than likely has knob and tube wiring and restricted to a 60amp service panel.

If they were truly 3 separate properties, you would not be able to claim ANY exclusion, even prorated, on Unit B due to the "one sale every 2 years" restriction.

What is probably restricting me, and I could be wrong, since I haven’t developed much equity in my currently home.