Rental property owners cannot be more than 30 days past due on their homeowners or condominium association fees to obtain, renew or maintain a rental license.

Then, if they choose to renew, they can be on the same term. 

The tenant's lease is ending this month and I'm not renewing.

Any thoughts on increasing rents for lease renewals?

Non-renew a side neighbor and then expand your space by combining 2 units in to one.

The fideicomiso is for 50 years and can be renewed indefinitely.

One charges a one-time onboarding fee and lease renewal fees, while the other two don't.

You could choose to not renew their lease and start construction now with a detached ADU and a JADU attached to the original house, then in 3 years go for the lot split.I went this route because the resulting 2 lots will sell for much more than 1 lot with 4 units.

That will be done, if the current tenant decides not to renew in April. 

From my experience, most property managers charge the following:-6%-10% of the gross rents-Cost of turnover-Mark up on all repairs-Costs to renew leasesCould you self manage?