You don’t need money.

I want the lawn back in the shape it was when the tenant moved in 2 years ago - so I would prefer to take the money out of his deposit, in order to have it professionally done. 

This is stressful and makes taking the tax hit look appetizing. 

I think you are trying to say you want to put your money on the line doing flips but don't want to take the time to make sure you do it right.

Ask if you can put in a section for a Non Compete agreement so you can move more money away from the house and buildings. 

If you have switched jobs and your retirement is in an IRA vs. 401k, maybe consider rolling it into a self-directed account to invest in other people's deals with that money (aka private money lender, syndications, etc.)

I’ve put a bit of money into the building and it has appreciated quite well.

😱It's not about the money.

Quote from @Dane Reynolds: My policy is that you should never sell a property unless you can move the money into a better investment or the sale moves you closer to your goals.

They were good at taking your money and timely kicking out certificates of insurance, but if you have a claim, that is a different story.While they paid a fire claim (an ex-lover of the tenant set the dwelling on fire, because the tenant purportedly broke up with him) NREIG made it difficult, and attempted to undervalue the claim on the basis the property was not properly insured.