All my voucher units under one housing authority, or split across two

I own nine doors, five of them on vouchers, and all five sit inside a single authority's jurisdiction. That was accidental at first and then it started to look like a feature. One portal, one inspector pool whose habits I've learned, one recertification calendar I can plan a year around. When I add a unit in that same jurisdiction the marginal admin cost is close to zero.

The argument against it is that I've concentrated my most reliable income behind one administrative body. If that authority slows its inspection scheduling, changes how it handles reinspections, or its payment standard sits flat for a couple of cycles while taxes and insurance keep moving, every voucher unit I own feels it at the same time. Funding decisions land at the federal level, but the day to day pace is local, and local pace is what actually costs me vacant months.

The next two acquisitions I'm looking at are twelve and forty minutes away, and the forty minute one puts me in a second authority. Roughly comparable price and payment standard. So the question is whether the diversification is worth learning a second bureaucracy from scratch, or whether depth inside one authority is the real asset here. I've argued both sides to myself for a month.