It will be easy for you to check if they paid on time, as you can check instantly online.  

Since the last time I was online, I have grown the investing to fix and flipping and a portfolio of 4 properties that are producing passive income.  

After some research online, I am reading that the cost per square foot on a gut renovation of this nature in Stamford CT is anywhere from $150-$350, which is ultimately not very helpful, because at $150 per sq ft, this is a very appealing project with a total profit of ~$175K (46% ROI) and at $350 per sq ft, it very much isn't, because it would be a net loss of 83K (haha).QUESTIONS:What can I do refine my estimate a bit given that I am not allowed to a formal inspection on the property? 

Pressure to use affiliated servicesHidden fee structuresPROFESSIONAL BOUNDARIES ⚖️Good QIs maintain:Clear fee disclosuresWritten policiesProfessional distanceEthical guidelinesWATCH OUT FOR 👀QIs who:Push investment productsOffer tax or legal advice without credentialsSuggest "creative" solutionsPromise guaranteed returns on exchange fundsBEST PRACTICES FOR VETTING 📋Check multiple referencesVerify professional membershipsResearch online presenceReview complaint historyExamine years in businessINDEPENDENCE MATTERS!

I was seeing information online that suggested both routes...Thanks in advance for the help!

If it is a emotional support dog (basically a pet with papers they buy online, mostly to find a way to get a pet into a rental), ask for documentation from a local medical professional (NOT anything online). 

But damned if I can find anything online about landlords using it!

If the software is not simplifying your life or making you more accurate, you shouldn't use it.Software does have extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

There are mortgage recast calculators online or you can reach out to your lender.P+I payment will go from 2155 to ~1800 given the numbers you provided.

(G) Acceptable forms of payment of Rent (including Additional Rent) are ___ personal check, ___ cashier’s check, ___ bank check, ___ money order, and ___ the following online/ACH payment methods ____________________.