Does it validate the bump in rents... this is going to be out of the scope of 95% of LPs out there who don't have access to Co Star etc.Age and Condition of Property:Assess the age of the property (e.g., 1960s-1990s).Evaluate potential maintenance issues and the adequacy of contingency budgets for older properties.

If one buyer doesn’t want to pay what it’s worth, someone else will.Know your market: If the market truly shifts and a buyer’s concerns are valid, it’s reasonable to adjust.

After suing Farmers Insurance for 7 years and having to hire an attorney to deal with a title claim that the underwriter's counsel admitted was a valid claim, I know of what I speak. 

Hey everyone, I’m working on a platform concept called RentKeep that focuses on providing property intelligence to help property managers make data-driven decisions to increase their NOI. This concept is currently in ...

Quote from @Marcus Morin: Quote from @Bryan Montross: I agree that you need to have something in your lease stating that it is not a valid lease until the security deposit and first month's rent are paid.

Validate that offer during due diligence When things change.. equivocally so should the terms.

The brands I've been bid on have been:Eco WindowsCGI Sparta SeriesLawson IndustriesESWindowsAssuraAssura is from home depot, main advantage i've found is that they have a quick lead time of 4 weeks, compared to everyone else saying 6-8 weeks.CGI I heard its a reputable brand with a good warranty Lawson, cheapest quote but Im' hearing has a huge lead time now and they have been messing up peoples orders with sizes or specificationsES Windows, comes from Colombia and I heard spare parts, replacements and customer service is terribleEco, I haven't really heard much about but price seems close to what I'm being quoted for CGI Spartas Anybody on here with more experience that can help me narrow it down? 

This is the norm on the forums...not the norm for sophisticated LPs (who perform credit checks, run TLO reports, track sponsor performance over years and decades, have attorneys review PPMs, review PPMs and OMs and discuss them with peers, negotiate more favorable LP terms for investing at scale with a group, have access to institutional opportunities that have minimum investment levels in the millions, validate rent rolls with comps, validate purchase and exit cap rate assumptions, analyze rent and exit cap rate sensitivities on IRRs, analyze submarket demographics to validate revenue, analyze the sponsors total portfolio risks rather than just the deal, understand the debt terms thoroughly and have a conscious position on what debt fits the LPs risk profile...the list goes on and on and it's not a checklist approach / it's investment analysis that requires qualifying the property based on extensive knowledge of the asset class and additional work qualifying the sponsor.

Most builders offer a one year warranty. 

Those are both two valid reasons but if the funds are being used as a down payment to buy another home.