You may may be able to convert in future renewals.

In that case I would start well before renewal, be upfront about the improvement, hassle, and higher rent coming, then have it done before they have to decide whether to renew.

Otherwise, non-renew them both.

Now that a year has gone by, the state is asking me to renew the LLC.

I renew with rent increases, while private Landlords may go a decade or more without a single increase.

I'd tell them that you are not renewing or you increase the rent. 

Common fees will include a set-up fee, leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

Suburban office is definitely looking better than downtown currently.Our LLC has a two-story suburban office asset with spaces in the 650 - 1300 sq foot range in the Upstate of SC, and it has held firm throughout COVID with three tenants renewing over the past 10 months with no missed rents.  

Also Hotpads and Rently sometimes contain listings not mentioned elsewhere, so it's always good to cross reference multiple sites.I'd also mention (when you are leasing or renewing your rentals) not to be afraid of challenging your PMs numbers if you feel confident in doing so.

Anyway, for the past couple of years, when came around to notifying about her lease renewal and rent increase, she always managed to complain about repairs/issues we've supposedly neglected to fix in her apartment.