You should definitely be consistently asking for reviews from happy customers.

Some of the best sources for durable furnishings at reasonable prices include:IKEA: They offer modern designs, and some of their higher-end lines are surprisingly durable.Costco: Their furniture tends to be both stylish and durable, often at great prices for the quality you get.Wayfair: Offers a wide range of options, and while not everything is long-lasting, their customer reviews can help you identify durable pieces, just use more caution. 

Choose to conduct due diligence in-house, hire a third-party company, or utilize the property management company.

The main thing I would look for is breadth of underwriting guidelines and customer service.

They charge you utilities for anything over $250/tenet.

We would be installing a street and double stacking townhome style units on each side.I part I don’t have experience with necessarily is how to better understand infrastructure and site work cost (road, utilities, excavating, etc.

As with any type of investment, investors should list the estimated costs to calculate their potential profit.Costs to consider on fix-and-flipsRepairs (always be conservative)Carrying costs (interest, points)Monthly costs (utilities, HOAs, insurance, taxes)Buying costs (back taxes, cash for keys, liens, code violations)Selling costs (commissions, closing costs, transfer fees, title insurance)Unexpected costs (add $5,000 to be safe)These are the basic costs investors should consider.

I do know that the pricing varies based on the unit count as well as what level you sign up for; but overall, it's super user-friendly for tenants, PM's & owners.Plus they're always updating their software and adding new automation features to make everything so simple as well as well as great customer support. 

@William Coet, as Jackson noted, there are too many variables to even begin.Two things to remember, any tax losses you utilize to offset incomes, will reduce basis making bigger tax bill in sale year.  

Last think to consider when purchasing a home is utilizing a 401k loan if you have a 401k established.