It doesn't matter whether it's an old or new house. Ensure you can pay without reaching out to anyone for rent. Don't live to impress. Live within your means. If 2 to 6 months' income can't sort your rent. Go down a bit more.
2. Always smell nice:
It doesn't matter whether your cologne is 20k or 1m. Just ensure you don't smell sweaty and your clothes don't reek of harsh dust that got glued because you've not washed it after 4 days. Smell good that they'd be shy to ask what perfume you use.
3. Be well polished:
Carry yourself like you've got so much money that theirs mean nothing. I know that you can't and shouldn't "fake it" for your helper. But let me be clear, "Na who give you money gan gan. Be your helper. Who promise you. Fit change mind."