For example if you are replacing the cabinets and countertops  that is the time to rearrange the layout/ flow.

Handwritten envelopes and on that lay out what all that you'll do using different contents until it works. 

So you can show how XYZ units would layout on the property.

Finishes, layout, updating (or not), general condition and lot quality are just some things that factor into the final value. 

They will design a layout with you and provide/install the kit. 

Meeting with a Realtor, possibly at the same time, can give you an idea as to what your options are on the market.They will be able to lay out your options - FHA, Conventional, renovation loan, etc.Best of luck to you moving forward!

It did have a new roof and furnace and the layout was nice and in a pretty good location. 

After it expires the limit is much lower.You probably need to do a purchase agreement with your sibling and lay out what you are doing and record that. 

If no, then figure out what you're doing to have to do to get it (raise money, find financing, network, learn more, etc...).If you lay out an ideal path, maybe we can help fill in the gaps to get you there.Hope that helps!

Also, to find a single family with an ideal layout that allows for room sharing in a comfortable manner will be even more challenging in my experience.