If you are looking to just calculate profitability, set how much profit you want to make then:ARV - Purchase Costs - Holding Costs - Selling Costs - Desired Profit - Rehab Budget (including contingency) = Maximum Allowable OfferIF you cannot calculate those numbers, a spreadsheet isn't going to help you. 

Do current tenants have a say in deciding if the landlord will be allowed for this conversion or no? 

My target is 8% plus for properties less than 10 years old as I want to take advantage of depreciation deductions.

The majority of landlords don't allow pets in there properties.

Remember, the seller is someone so desperate that they are allowing an 18 year old kid to flip the contract to sell their home.

EBR housing allows around $1,300/month for 3 bedrooms.

Since agency loans don't allow you to put the loan in an LLC, ask your wife this. 

@Marcos Carbi  If you want to allow a payment plan, Tell them this is the best I can do:Pay $xxx cash by tonight at 8pm for November's rent. and then beginning Monday Jan 20, pay $450 each Monday (in cash?

I'm considering shrinking the enclosed porch to allow egress from the 2nd bedroom window to the outdoors.Looking for some thoughts and guidance.

Typically homes in-between tenants, or a new purchase with intent to have renters within 30 days this is allowed.