Option 2: Electrician recommended mini splits - said 2 units should do the trick and would cost around $6-$7k.Heating system 2 is forced hot air oil furnace specifically for the 3rd unit.

At other buildings we switched heat source away from oil heat, too expensive. 

If you can access the wall cavity, adding rock wool (mineral wool) insulation will make a big impact by reducing vibrations and sound transfer. 

For 20 years I have been in the oil & gas drilling industry.  3 years ago, I became a drilling consultant and started my own business.  

.: Quote from @James Jefferson: Hi, I have a family member that had a reverse mortgage on their property it's a 3b 1b 1 acre of land heats by oil no hvac and on well water.

Current individual stock portfolio (non-retirement accounts) with holdings that might be volatile in the next few years (big tech & big oil). $51k is about 17% of the portfolio and gains on the stock holdings are already 100-200% (long-term).

As the conversation progresses you will be able to tell if the agent truly has insight and knowledge or if they sell snake oil.  

He is brilliant in shorting currencies and their equivalents.Most big players are shorting their own positions (especially miners) as a hedge.

We had an underground oil tank that we thought was a 270 gallon. 

Quote from @James Jefferson: Hi, I have a family member that had a reverse mortgage on their property it's a 3b 1b 1 acre of land heats by oil no hvac and on well water.