Include a response deadline, but give enough time for the seller to consider the whole package. An unnecessarily tight deadline could undermine the flexible tone. If timing genuinely helps them, state the closing flexibility clearly rather than using it as vague goodwill.
I’d put more weight on relevant comparable sales than response-time promises. Ask which recent apartment sales they consider comparable to yours and why, then discuss pricing and negotiation decisions from those examples. A promised reply within an hour sounds measurable, but it says little...
I disagree with choosing a universal net-yield hurdle first. A 5-bed house is a concentrated asset with a narrower tenant pool than several smaller units, so two deals showing the same net yield can carry very different turnover and repair risk.
Model annual operating income before financing...