Tenant wants to add insulation

[Aric Adams]

In Atlanta GA...

Tenant complained that the heating units in the property were not working properly. I sent a tech out to check on the heating units work fine. The tenant claims that the tech mentions  that the property could be better insulated and/or your landlord could get a stronger heating unit (none of this is in the report I was given).

I did look into what it would take/cost and its really not feasible to do the improvement to do while a tenant is actually living in the unit. Many companies cite safety, logistical, etc concerns doing a Spray Foam + drywall improvement with someone living in the unit.

I was going to communicate this with the tenant and offer her the option to break the lease early but before I got to that part - she hangs up the phone. 

Now she is claiming that she is withholding rent at the courthouse until all her issues are fixed. This is a clear violation of her lease but she says I she can't get evicted because of the moratorium...

Any repairs that have needed to be made - I've made. This is not a repair though as the existing unit is is great condition.

This tenant has been a problem since she's signed the lease 3 months ago... 

Any thoughts/suggestions would be greatly appreciated!