Honestly, unless you’re in a high-end market where buyers or renters expect it, dropping thousands on a sprinkler system probably isn’t your best ROI move—especially if the property has been sitting for months.

Thanks for your guidance because without it we may have bid too high. 

Investment loans generally carry high down-payments and costs.

However I have used some of apifys scrapers (for non real estate uses) and was highly satisfied with the value for the price: https://apify.com/tri_angle/redfin-search It looks like it’s for listed properties only?

I have a great planning tool that could help you with planning your acquisition strategy for the next 10 years you might find helpful.  

Are their listings detailed with good quality photos?

I highly doubt many people have many a lot of money, because I have not really seen any in the FB group post things like... 

Professional PMs use specialized tools to verify income directly with a tenant’s bank or payroll service, ensuring legitimacy.

I think its a scary feeling, like the cost of entry is too high.

There are plenty of older homes on the market that do not have closets.You need 2 egresses (including 1 that goes outside) such as a door or window, size about 70sqft (local codes may differ), ceilings at least 7ft high, and it cannot be a walk-through passage.As always, your local codes may be different.