I don't work for a PHA but I work with them on certain project types. It's all tied together, really, so aside from regulations that apply specifically to a PHA's program, it's all kind of in the same basket because what a tenant has to do is connected/related to what a landlord has to do - they're just steps in the overall process.

I visit 24 CFR (the regulations relating to anything HUD, which includes PHAs) to reference something probably about once a week on average. Since my organization serves tenants, it's usually related to what we must do as a recipient of funding from various streams or to what a tenant must do as a participant in one of those federally funded programs. Some of our clients are tenants in project-based voucher programs.

On the SAFMR and grouping/analysis, I believe HOC in Montgomery County does something similar in doing their rent reasonableness analyses, but it might be on a more granular basis.