You should be able to recoup your closing costs within a 12-36 month period for best recovery. 

Following CDC guidelines:-----You can be around others after:10 days since symptoms first appeared and24 hours with no fever without the use of fever-reducing medications andOther symptoms of COVID-19 are improving**Loss of taste and smell may persist for weeks or months after recovery and need not delay the end of isolation​Most people do not require testing to decide when they can be around others; however, if your healthcare provider recommends testing, they will let you know when you can resume being around others based on your test results.Note that these recommendations do not apply to persons with severe COVID-19 or with severely weakened immune systems (immunocompromised).

Here's just a couple as an example:Rent Recovery ServiceMr Landlord Debt Reporting Service 

Then compare that number to the expected recovery from the sale of the project. 

This is how most professional athletes do it.

The tech sector obsessed with skimming more and more off the top of those fat STR margins: https://www.prnewswire.com/news-releases/property-management-platform-guesty-raises-50m-in-series-d-funding-signaling-a-year-of-recovery-for-the-short-term-rental-ecosystem-301277520.html

The speedier recovery of the U.S. economy along with generous government aid has enabled Americans to spend more on imports as well as domestically produced goods and services.

They just voted to build two new (expensive) high schools and athletic complexes, so taxes are going to go up substantially.

Economists expect some moderation in home price growth in the fourth quarter as the pace of home sales cools in the face of a resurging pandemic, a faltering recovery, and low inventory.

If your creative, its bit more complicated than just looking at those two components to determine if you over payed or under payed.  ...and it can go well beyond that...and I will bore those interested with numbers (LOL).Example:  PV = $100k; AP = $100k; CF w/NO debt = $10k/y (and yes, this is a real property...and not uncommon)Option #1:Offer = $100k; DP (100%) = $100k; Loan = $0k; Annual DS = $0k; CF = $10k/yTotal Cost = $100k; Actual Cost (to REI) = $100k; Cost Recovery = 10 years; Profit over 10 years = $0k (total)# of properties = 1; Total PV = $100kOption #2a:Offer = $100k; DP (20%) = $20k; Loan = $80k; Annual DS = $5k (approx); CF = $5k/yTotal Cost = $170k; Actual Cost (to REI) = $20k; Cost Recovery = 4 years; Profit over 10 years = $30k (total)# of properties = 1; Total PV = $100kOption #2b: Using the same $100k as Option #1Offer = $100k; DP (20%) = $20k; Loan = $80k; Annual DS = $5k (approx); CF = $5k/y; Total CF (5 Prop) = $25kTotal Cost = $850k; Actual Cost (to REI) = $100k; Cost Recovery = 4 years; Profit over 10 years = $150k (total)# of properties = 5;  Total PV = $500k