They cant be expected to run to the shop, grab materials, install at cost.

The purchase price, loan amount, your interest rate, whether you need mortgage insurance, your homeowner's insurance cost, property taxes, and your current monthly debt obligations all factor into your DTI.  

whats the cost?

I have the pro yearly plan but if you have one property it may be best to opt for the starter plan and use a less costly lease builder like EZ Landlord.

So, we incur little if any cost on prelims.

Our properties are built by Morton Buildings The cost averaged about $1800 per unit + land costs.

Buyer pays closing costs & loan doc fees: $3,800 approx.Total Entry Fee: $23,800 to close -- or 9% of the purchase price!

If Tenant Defaults under this Lease, Landlord may exercise all rights and remedies available under applicable law, including the right to: (i) terminate this Lease; (ii) regain possession of the Property through an eviction or similar process; (iii) recover from Tenant all unpaid Rent, including unpaid Monthly Rent, Additional Rent, Late Fees and, if applicable, holdover Rent for the period prior to Tenant’s delivery of possession of the Property to Landlord; (iv) recover all Rent payable under this Lease for the period from the date of termination for Tenant Default through the stated Expiration Date, less the amount Landlord is able to collect from any replacement tenants for that period; and (v) recover allreasonable costs and expenses incurred by Landlord in repairing any damage to the Property, caused by the improper useby any Occupant or any guests of an Occupant, less any amounts obtained from the Security Deposit.

All said and done it cost me an additional $2300 in fees for the HML that went past its maturity date plus the appraisal, all this could have been avoided if they told me they had an issue with my credit score from the beginning. 

Your only issue is that STR management is costly in Austin, up to 25 percent.